Factor Completely $4 x^{2}-49$ A) $(4 x+1)(x-49)$ B) $(2 x+7)^{2}$ C) $(2 x-7)^{2}$ D) $(2 x+7)(2 x-7)$

Multiple Choice

Factor completely.
- $4 x^{2}-49$

A) $(4 x+1) (x-49)$
B) $(2 x+7) ^{2}$
C) $(2 x-7) ^{2}$
D) $(2 x+7) (2 x-7)$