Solve $u ^ { 2 } - 16 u = 0$

Multiple Choice

Solve $u ^ { 2 } - 16 u = 0$ by completing the square.

A) $u = - 16$
B) $u = 0 , u = - 16$
C) $u = 0 , u = 16$
D) $u = 1 , u = 16$
E) $u = 80 , u = - 48$