Factor Completely $16 x ^ { 2 } + 49$ A) $( 4 x - 7 ) ^ { 2 }$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ
- $16 x ^ { 2 } + 49$

A) $( 4 x - 7 ) ^ { 2 }$
B) $( 4 x + 7 ) ( 4 x - 7 )$
C) $( 4 x + 7 ) ^ { 2 }$
D) Prime