Determine Which of the Following Values of X Is a Solution

Determine which of the following values of x is a solution to the equation $x ^ { 2 } + 9 x + 20 = 0$ .

A) $x = 4 , x = - 5$
B) $x = - 4$
C) $x = - 4 , x = - 5$
D) $x = - 4 , x = 5$
E) $x = 5$