Write as a Logarithm of a Single Expression $\log _ { 11 } \frac { ( x + 9 ) } { ( x - 7 ) }$

Multiple Choice

Write as a logarithm of a single expression.
-log11 (x + 9) + log11 (x - 7)

A) $\log _ { 11 } \frac { ( x + 9 ) } { ( x - 7 ) }$
B) $\log _ { 11 } ( x + 9 ) ( x - 7 )$
C) $\log _ { 11 } ( 2 x + 2 )$
D) $\log _ { 11 } ( x + 2 )$