If Possible, Factor the Polynomial Completely $147 a ^ { 4 } - 27 b ^ { 2 }$

Multiple Choice

If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.
- $147 a ^ { 4 } - 27 b ^ { 2 }$

A) $3 \left( 7 a ^ { 2 } + 3 b \right) \left( 7 a ^ { 2 } - 3 b \right)$
B) $3 \left( 7 a ^ { 2 } + 3 b \right) ^ { 2 }$
C) $3 \left( 7 a ^ { 2 } - 3 b \right) ^ { 2 }$
D) $147 a ^ { 4 } - 27 b ^ { 2 }$