Change the Radical to Simplest Radical Form $- \frac { 3 } { 16 } \sqrt { 20 }$

Multiple Choice

Change the radical to simplest radical form. $- \frac { 3 } { 16 } \sqrt { 20 }$

A) $- \frac { \sqrt { 5 } } { 8 }$
B) $- 3 \sqrt { 5 }$
C) $3 \sqrt { 5 }$
D) $- \frac { 3 \sqrt { 5 } } { 8 }$