Solve the Inequality $$4 x ^ { 2 } - 19 x - 30 \geq 0$$

Multiple Choice

Solve the inequality. Write the solution set in interval notation.
- $$4 x ^ { 2 } - 19 x - 30 \geq 0$$

A) $( - \infty , - 6 ] \cup \left[ \frac { 5 } { 4 } , \infty \right)$
B) $\left[ - 6 , \frac { 5 } { 4 } \right]$
C) $\left[ - \frac { 5 } { 4 } , 6 \right]$
D) $\left[ - \infty , - \frac { 5 } { 4 } \right] \cup [ 6 , \infty )$