Perform the Operations and Simplify the Result When Possible $\frac { s + 6 } { s - 6 } - \frac { s - 6 } { s + 6 }$

Multiple Choice

Perform the operations and simplify the result when possible. $\frac { s + 6 } { s - 6 } - \frac { s - 6 } { s + 6 }$

A) $\frac { s ^ { 2 } - 24 s - 36 } { ( s + 6 ) ( s - 6 ) }$
B) 0
C) $\frac { 24 \mathrm {~s} } { ( s + 6 ) ( s - 6 ) }$
D) 2s
E) $\frac { s ^ { 2 } + 24 s + 36 } { ( s + 6 ) ( s - 6 ) }$