Simplify the Expression $$( n - 6 ) ( n - 6 )$$

Multiple Choice

Simplify the expression. $$( n - 6 ) ( n - 6 )$$

A) $n ^ { 2 } + 12 n + 36$
B) $n ^ { 2 } - 12 n$
C) $13 n + 36$
D) $n ^ { 2 } - 12 n + 36$
E) $n ^ { 2 } - 12 n - 36$