what is the least number. which should be added to 221 to make it a perfect square?	Choose the most appropriate option:
A) 5
B) 8
C) 4
D) 6
E) 7
221+4= 
<gadget id="calculator">221+4</gadget>
<output>225</output>
225   15^2   ANSWER:4
<result>C</result>
what is the least number. which should be added to 221 to make it a perfect square?