Solve the Inequality $\frac { 40 - 8 x } { x ^ { 2 } } \leq 0$

Multiple Choice

Solve the inequality. Write the solution set in interval notation.
- $\frac { 40 - 8 x } { x ^ { 2 } } \leq 0$

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