Use Rational Exponents to Write as a Single Radical Expression $\frac { \sqrt [ 7 ] { \mathrm { y } } } { \sqrt [ 8 ] { \mathrm { y } } }$

Multiple Choice

Use rational exponents to write as a single radical expression.
- $\frac { \sqrt [ 7 ] { \mathrm { y } } } { \sqrt [ 8 ] { \mathrm { y } } }$

A) $\sqrt [ 8 ] { \mathrm { y } ^ { 7 } }$
B) $\sqrt [ 56 ] { \mathrm { y } }$
C) $y$
D) $\frac { 1 } { \sqrt { y } }$