Give the Domain and Range of the Relation $g ( a - 1 )$

Give the domain and range of the relation.
-Find $g ( a - 1 )$ when $g ( x ) = \frac { 1 } { 4 } x - 1$

A) $\frac { a - 5 } { 4 }$
B) $\frac { a + 5 } { 4 }$
C) $\frac { 1 } { 4 } a - 4$
D) $\frac { 1 } { 4 } a - 1$