Simplify by Combining Like Radicals $4 \sqrt { 2 x } + 6 \sqrt { 2 x }$

Multiple Choice

Simplify by combining like radicals. The variable represents a positive real number. $4 \sqrt { 2 x } + 6 \sqrt { 2 x }$

A) $10 \sqrt { x }$
B) $10 \sqrt { 2 x }$
C) $2 \sqrt { 2 x }$
D) $24 \sqrt { 2 x }$
E) $20 \sqrt { x }$