Solve by Completing the Square $16 x ^ { 2 } + 56 x + 45 = 0$

Multiple Choice

Solve by completing the square.
- $16 x ^ { 2 } + 56 x + 45 = 0$

A) $- \frac { 9 } { 8 } , \frac { 27 } { 8 }$
B) $- \frac { 5 } { 4 } , - \frac { 9 } { 4 }$
C) $- \frac { 5 } { 16 } , - \frac { 9 } { 16 }$
D) $\frac { 5 } { 4 } , \frac { 9 } { 4 }$