Find $f ^ { \prime \prime } ( x )$ If $f ( x ) = ( 9 + 5 x ) e ^ { - 8 x }$

Multiple Choice

Find $f ^ { \prime \prime } ( x )$ if $f ( x ) = ( 9 + 5 x ) e ^ { - 8 x }$ .

A) $f ^ { \prime \prime } ( x ) = ( 496 - 320 x ) e ^ { - 8 x }$
B) $f ^ { \prime \prime } ( x ) = ( - 496 - 320 x ) e ^ { - 8 x }$
C) $f ^ { \prime \prime } ( x ) = - 496 ( 9 + 5 x ) e ^ { - 8 x }$
D) $f ^ { \prime \prime } ( x ) = - ( 67 + 40 x ) e ^ { - 8 x }$
E) $f ^ { \prime \prime } ( x ) = ( 496 + 320 x ) e ^ { - 8 x }$