How many of 
$ 11^2 \plus{} 13^2 \plus{} 17^2$,  $ 24^2 \plus{} 25^2 \plus{} 26^2$, $ 12^2 \plus{} 24^2 \plus{} 36^2$, $ 11^2 \plus{} 12^2 \plus{} 132^2$ are perfect square ? 

$\textbf{(A)}\ 4  \qquad\textbf{(B)}\ 3  \qquad\textbf{(C)}\ 2 d)1  \qquad\textbf{(E)}\ 0$
1. **First Term: \( 11^2 + 13^2 + 17^2 \)**

   We will check if this sum is a perfect square by considering it modulo 4:
   \[
   11^2 \equiv 1 \pmod{4}, \quad 13^2 \equiv 1 \pmod{4}, \quad 17^2 \equiv 1 \pmod{4}
   \]
   Therefore,
   \[
   11^2 + 13^2 + 17^2 \equiv 1 + 1 + 1 \equiv 3 \pmod{4}
   \]
   Since 3 modulo 4 cannot be a perfect square, \( 11^2 + 13^2 + 17^2 \) is not a perfect square.

2. **Second Term: \( 24^2 + 25^2 + 26^2 \)**

   We will check if this sum is a perfect square by considering it modulo 8:
   \[
   24^2 \equiv 0 \pmod{8}, \quad 25^2 \equiv 1 \pmod{8}, \quad 26^2 \equiv 4 \pmod{8}
   \]
   Therefore,
   \[
   24^2 + 25^2 + 26^2 \equiv 0 + 1 + 4 \equiv 5 \pmod{8}
   \]
   Since 5 modulo 8 cannot be a perfect square, \( 24^2 + 25^2 + 26^2 \) is not a perfect square.

3. **Third Term: \( 12^2 + 24^2 + 36^2 \)**

   We will factorize this term:
   \[
   12^2 + 2^2 \cdot 12^2 + 3^2 \cdot 12^2 = 12^2 (1 + 4 + 9) = 12^2 \cdot 14
   \]
   Since \( 14 \) is not a perfect square, \( 12^2 \cdot 14 \) is not a perfect square.

4. **Fourth Term: \( 11^2 + 12^2 + 132^2 \)**

   We will check if this sum is a perfect square:
   \[
   11^2 + 12^2 + 132^2 = 121 + 144 + 17424 = 17689
   \]
   We need to check if \( 17689 \) is a perfect square:
   \[
   17689 = 133^2
   \]
   Therefore, \( 11^2 + 12^2 + 132^2 \) is indeed a perfect square.

Conclusion:
Only one of the given sums is a perfect square.

The final answer is \( \boxed{1} \)