What is 3 root of 72 ?
A.
9 3 root of 2
B.
3 3 root of 9
C.
2 3 root of 9
D.
9 3 root of 3
A.
9 3 root of 2
B.
3 3 root of 9
C.
2 3 root of 9
D.
9 3 root of 3