What will be the value of that smallest positive integer N, such that \(\sqrt {291N} \) is an integer?

What will be the value of that smallest positive integer N, such that

1.	What will be the value of that smallest positive integer N, such that \(\sqrt {291N} \) is an integer?
A.	2
B.	4
C.	6
D.	8
Answer» D. 8