Solve the Equation $a ^ { 3 } - 4 a ^ { 2 } - 60 a = 0$

Multiple Choice

Solve the equation. $a ^ { 3 } - 4 a ^ { 2 } - 60 a = 0$

A) {6, 10, 0}
B) {6, $-$ 10, 0}
C) { $-$ 6, 10, 0}
D) { $-$ 6, $-$ 10, 0}
E) none of these