Solve the Equation $7 p ^ { 2 } = - 28 p$

Multiple Choice

Solve the equation. $7 p ^ { 2 } = - 28 p$

A) { $-$ 4, 0 }
B) { 4, 0 }
C) { 1, 0 }
D) { 1 }
E) { $-$ 1, 0 }