Which expression is equivalent to $\sqrt{120 x}$ ?
A$2 \sqrt{30 x}$
B$2 \sqrt{30}$
C$4 \sqrt{30 x}$
D$60 \sqrt{2 x}$
A$2 \sqrt{30 x}$
B$2 \sqrt{30}$
C$4 \sqrt{30 x}$
D$60 \sqrt{2 x}$