Which Expression Is Equivalent To $- 13 / ( x - 10 )$

Multiple Choice

Which expression is equivalent to $- 13 / ( x - 10 )$ ?

A) $\frac { - 13 } { 10 + x }$
B) $\frac { - 13 } { 10 - x }$
C) $\frac { 13 } { 10 - x }$
D) $\frac { 13 } { 10 + x }$