Factor Completely $4 y^{4}-49$ A) $\left(2 y^{2}+7\right)\left(2 y^{2}-7\right)$ B) $\left(2 y^{2}+7\right)^{2}$ C) $\left(2 y^{2}-7\right)^{2}$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write "prime."
- $4 y^{4}-49$

A) $\left(2 y^{2}+7\right) \left(2 y^{2}-7\right)$
B) $\left(2 y^{2}+7\right) ^{2}$
C) $\left(2 y^{2}-7\right) ^{2}$
D) prime