Use Rational Exponents to Simplify the Following $\sqrt [ 6 ] { \mathrm { y } ^ { 4 } \mathrm { z } ^ { 6 } }$

Multiple Choice

Use rational exponents to simplify the following.
- $\sqrt [ 6 ] { \mathrm { y } ^ { 4 } \mathrm { z } ^ { 6 } }$

A) $y ^ { 3 / 3 } z ^ { 3 / 2 }$
B) $y ^ { 2 / 3 }$
C) $y ^ { 2 / 3 } z$
D) $\mathrm { y } ^ { 3 / 2 } \mathrm { z }$