Use Properties of Logarithms to Condense the Logarithmic Expression $\frac { 1 } { 3 } \left( \log _ { 4 } x + \log _ { 4 } y \right)$

Multiple Choice

Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
- $\frac { 1 } { 3 } \left( \log _ { 4 } x + \log _ { 4 } y \right)$

A) $\sqrt [ 3 ] { \log _ { 4 } ( x y ) }$
B) $\log _ { 4 } \sqrt [ 3 ] { x + y }$
C) $\log _ { 4 } \sqrt [ 3 ] { x } + \log _ { 4 } \sqrt [ 3 ] { y }$
D) $\log _ { 4 } \sqrt [ 3 ] { x y }$