Assume That Variables Represent Positive Real Numbers $$\sqrt [ 5 ] { ( x + y ) ^ { 3 } }$$

Multiple Choice

Assume that variables represent positive real numbers. Replace the radical with rational exponents
- $$\sqrt [ 5 ] { ( x + y ) ^ { 3 } }$$

A) $\left( x ^ { 3 } + y ^ { 3 } \right) ^ { 1 / 5 }$
B) $( x + y ) ^ { 3 / 5 }$
C) $\left( x ^ { 5 } + y ^ { 5 } \right) ^ { 1 / 3 }$
D) $( x + y ) ^ { 5 / 3 }$