What should be added to 4750 so that it may become a perfect square?	Pick one:
A) 11
B) 15
C) 16
D) 17
E) 18
69x69=4761   4761-4750= 
<gadget id="calculator">4761-4750</gadget>
<output>11</output>
11   If added to 11 get perfect square   answer=11
<result>A</result>
What should be added to 4750 so that it may become a perfect square?