Find the Requested Function Value $( g \circ f ) ( 6 )$

Multiple Choice

Find the requested function value.
-Find $( g \circ f ) ( 6 )$ when $f ( x ) = - 5 x + 5$ and $g ( x ) = - 7 x ^ { 2 } - 4 x + 5$

A) $- 4270$
B) 280
C) 310
D) 1360