Factor the Trinomial Completely by Using Any Method $6 r ^ { 2 } - 35 r - 49$

Multiple Choice

Factor the trinomial completely by using any method. Remember to look for a common factor first. $6 r ^ { 2 } - 35 r - 49$

A) Prime
B) $r ( 6 r - 35 ) - 49$
C) $( 6 r + 7 ) ( r - 7 )$
D) $( 6 r + 7 ) ( r + 7 )$