Simplify the Algebraic Expression $$( z + 7 ) ( z + 7 )$$

Multiple Choice

Simplify the algebraic expression. $$( z + 7 ) ( z + 7 )$$

A) $z ^ { 2 } + 14 z + 49$
B) $z ^ { 2 } - 49$
C) $z ^ { 2 } + 49$
D) $z ^ { 2 } - 14 z + 49$
E) $z ^ { 2 } + 49 z + 49$