Perform the Operation and Simplify $( a - 14 ) ^ { 2 }$

Perform the operation and simplify. $( a - 14 ) ^ { 2 }$

A) $\quad a ^ { 2 } - 28 a + 196$
B) $\quad a ^ { 2 } - 14 a + 196$
C) $\quad a ^ { 2 } - 196$
D) $\quad a ^ { 2 } + 196$
E) $\quad a ^ { 2 } + 28 a + 196$