Write the Expression as a Single Logarithm $12 \log x + 15 \log y$

Multiple Choice

Write the expression as a single logarithm. Assume all variables represent positive real numbers. $12 \log x + 15 \log y$

A) $\log \left( x ^ { 12 } + y ^ { 15 } \right)$
B) $\log ( 12 x + 15 y )$
C) $\log \left( x ^ { 12 } y ^ { 15 } \right)$
D) $\log \frac { x ^ { 12 } } { y ^ { 15 } }$