Solve the Inequality $$x ^ { 2 } - 8 x + 15 \geq 0$$

Multiple Choice

Solve the inequality. Use algebra to solve the corresponding equation.
- $$x ^ { 2 } - 8 x + 15 \geq 0$$

A) $[ 3,5 ]$
B) $[ 5 , \infty )$
C) $( - \infty , 3 ]$
D) $( - \infty , 3 ] \cup [ 5 , \infty )$