Solve the Inequality $x ^ { 2 } - 7 x \geq - 12$

Multiple Choice

Solve the inequality.
- $x ^ { 2 } - 7 x \geq - 12$

A) $( - \infty , 3 ]$
B) $[ 3,4 ]$
C) $( - \infty , 3 ]$ or $[ 4 , \infty )$
D) $[ 4 , \infty )$