Factor Completely $y m ^ { 2 } - 8 y m + 16 y$

Multiple Choice

Factor completely. Check by multiplying the factors. $y m ^ { 2 } - 8 y m + 16 y$

A) $y ( m - 4 y ) ( m - 4 )$
B) $y ( m - 1 ) ( m - 16 )$
C) $( y m - 4 ) ( m - 4 )$
D) $( m - 4 ) ( m - 4 )$
E) $y ( m - 4 ) ( m - 4 )$