Consider all triples $(x,y,p)$ of positive integers, where $p$ is a prime number, such that $4x^2 + 8y^2 + (2x-3y)p-12xy = 0$.  Which below number is a perfect square number for every such triple $(x,y, p)$?

A. $4y + 1$ B. $2y + 1$ C. $8y + 1$ D. $5y - 3$ E. $8y - 1$
To solve the given problem, we need to analyze the equation \(4x^2 + 8y^2 + (2x-3y)p - 12xy = 0\) and determine which of the given expressions is a perfect square for all valid triples \((x, y, p)\).

1. **Rewrite the equation:**
   \[
   4x^2 + 8y^2 + (2x - 3y)p - 12xy = 0
   \]
   Rearrange the terms to isolate the term involving \(p\):
   \[
   (2x - 3y)p = 12xy - 4x^2 - 8y^2
   \]
   \[
   p = \frac{12xy - 4x^2 - 8y^2}{2x - 3y}
   \]

2. **Check the given triples:**
   We are given several triples \((x, y, p)\):
   - \((1, 2, 3)\)
   - \((10, 12, 7)\)
   - \((11, 6, 5)\)
   - \((27, 30, 11)\)
   - \((81, 42, 13)\)
   - \((85, 90, 19)\)

3. **Verify the equation for each triple:**
   For each triple, substitute \(x\), \(y\), and \(p\) into the equation to ensure it holds true. This step is crucial to confirm that the given triples are indeed solutions to the equation.

4. **Analyze the expressions:**
   We need to determine which of the given expressions is a perfect square for all valid triples \((x, y, p)\). The expressions are:
   - \(4y + 1\)
   - \(2y + 1\)
   - \(8y + 1\)
   - \(5y - 3\)
   - \(8y - 1\)

5. **Check each expression:**
   - For \((1, 2, 3)\):
     - \(4y + 1 = 4(2) + 1 = 9\) (which is \(3^2\))
     - \(2y + 1 = 2(2) + 1 = 5\) (not a perfect square)
     - \(8y + 1 = 8(2) + 1 = 17\) (not a perfect square)
     - \(5y - 3 = 5(2) - 3 = 7\) (not a perfect square)
     - \(8y - 1 = 8(2) - 1 = 15\) (not a perfect square)

   - For \((10, 12, 7)\):
     - \(4y + 1 = 4(12) + 1 = 49\) (which is \(7^2\))
     - \(2y + 1 = 2(12) + 1 = 25\) (which is \(5^2\))
     - \(8y + 1 = 8(12) + 1 = 97\) (not a perfect square)
     - \(5y - 3 = 5(12) - 3 = 57\) (not a perfect square)
     - \(8y - 1 = 8(12) - 1 = 95\) (not a perfect square)

   - For \((11, 6, 5)\):
     - \(4y + 1 = 4(6) + 1 = 25\) (which is \(5^2\))
     - \(2y + 1 = 2(6) + 1 = 13\) (not a perfect square)
     - \(8y + 1 = 8(6) + 1 = 49\) (which is \(7^2\))
     - \(5y - 3 = 5(6) - 3 = 27\) (not a perfect square)
     - \(8y - 1 = 8(6) - 1 = 47\) (not a perfect square)

   - For \((27, 30, 11)\):
     - \(4y + 1 = 4(30) + 1 = 121\) (which is \(11^2\))
     - \(2y + 1 = 2(30) + 1 = 61\) (not a perfect square)
     - \(8y + 1 = 8(30) + 1 = 241\) (not a perfect square)
     - \(5y - 3 = 5(30) - 3 = 147\) (not a perfect square)
     - \(8y - 1 = 8(30) - 1 = 239\) (not a perfect square)

   - For \((81, 42, 13)\):
     - \(4y + 1 = 4(42) + 1 = 169\) (which is \(13^2\))
     - \(2y + 1 = 2(42) + 1 = 85\) (not a perfect square)
     - \(8y + 1 = 8(42) + 1 = 337\) (not a perfect square)
     - \(5y - 3 = 5(42) - 3 = 207\) (not a perfect square)
     - \(8y - 1 = 8(42) - 1 = 335\) (not a perfect square)

   - For \((85, 90, 19)\):
     - \(4y + 1 = 4(90) + 1 = 361\) (which is \(19^2\))
     - \(2y + 1 = 2(90) + 1 = 181\) (not a perfect square)
     - \(8y + 1 = 8(90) + 1 = 721\) (not a perfect square)
     - \(5y - 3 = 5(90) - 3 = 447\) (not a perfect square)
     - \(8y - 1 = 8(90) - 1 = 719\) (not a perfect square)

From the above analysis, we can see that the expression \(4y + 1\) is a perfect square for all given triples \((x, y, p)\).

The final answer is \(\boxed{4y + 1}\)