Combine the Radical Expression, If Possible $\sqrt { 36 x - 72 } + \sqrt { x - 2 }$

Multiple Choice

Combine the radical expression, if possible. $\sqrt { 36 x - 72 } + \sqrt { x - 2 }$

A) $6 \sqrt { 2 ( x - 2 ) }$
B) $8 \sqrt { x - 2 }$
C) $7 \sqrt { x - 2 }$
D) $7 \sqrt { 2 ( x - 2 ) }$
E) $6 \sqrt { x - 2 }$