Use the Distributive Property to Help Simplify the Following Expression $2 \sqrt { 20 x } + 3 \sqrt { 80 x } - 6 \sqrt { 125 x }$

Multiple Choice

Use the distributive property to help simplify the following expression. All variables represent positive real numbers. $2 \sqrt { 20 x } + 3 \sqrt { 80 x } - 6 \sqrt { 125 x }$

A) $5 \sqrt { - 14 x }$
B) $- 14 \sqrt { x }$
C) $5 \sqrt { x }$
D) $- 14 \sqrt { 5 x }$