Change the Radical to Simplest Radical Form $\sqrt { \frac { 10 } { 7 } }$

Multiple Choice

Change the radical to simplest radical form. $\sqrt { \frac { 10 } { 7 } }$

A) $7 \sqrt { 70 }$
B) $\frac { \sqrt { 70 } } { 7 }$
C) $\frac { \sqrt { 10 } } { 7 }$
D) $\frac { \sqrt { 10 } } { \sqrt { 7 } }$