Determine $( g \circ f ) ( x )$ For the Pair of Functions

Multiple Choice

Determine $( g \circ f ) ( x )$ for the pair of functions $f ( x ) = \frac { 4 } { x } \text { and } g ( x ) = 5 x - 5$

A) 20 x $-$ 5
B) $\frac { 4 } { x } + 5$
C) $\frac { 4 } { 5 x - 5 }$
D) $\frac { 20 } { x } - 5$