27 is a perfect cube. When x is added to the prime factor of 27, the result is a prime number. What is x?	Choices:
A) 1
B) 3
C) 5
D) 8
E) 11
27 is 3*3*3   then   A 3+1= 
<gadget id="calculator">3+1</gadget>
<output>4</output>
4   B   3+3= 
<gadget id="calculator">  3+3</gadget>
<output>6</output>
6   C   3+5= 
<gadget id="calculator">  3+5</gadget>
<output>8</output>
8   8 3+8= 11   E   3+11= 
<gadget id="calculator">  3+11</gadget>
<output>14</output>
14   here 8 is the only addition that gives a prime number.
<result>D</result>
27 is a perfect cube. When x is added to the prime factor of 27, the result is a prime number. What is x?