Solve the Problem $$( 8 m + 3 ) ^ { 2 }$$

Multiple Choice

Solve the problem.
- $$( 8 m + 3 ) ^ { 2 }$$

A) $8 m ^ { 2 } + 48 m + 9$
B) $64 m ^ { 2 } + 9$
C) $8 m ^ { 2 } + 9$
D) $64 m ^ { 2 } + 48 m + 9$