Assume That Variables Represent Positive Real Numbers $\sqrt [ 7 ] { 3 y }$

Multiple Choice

Assume that variables represent positive real numbers. Replace the radical with rational exponents
- $\sqrt [ 7 ] { 3 y }$

A) $( 3 y ) ^ { 7 / 2 }$
B) $3 y ^ { 1 / 7 }$
C) $( 3 y ) ^ { 1 / 7 }$
D) $\frac { 3 } { 7 } y ^ { 1 / 7 }$