Find the Following Product and Express Your Answer in Simplest $\frac { \sqrt { 42 } } { 7 \sqrt { 6 } + 6 \sqrt { 7 } }$

Multiple Choice

Find the following product and express your answer in simplest radical form. $\frac { \sqrt { 42 } } { 7 \sqrt { 6 } + 6 \sqrt { 7 } }$

A) $\sqrt { 6 } - \sqrt { 7 }$
B) $\sqrt { 7 } - \sqrt { 6 }$
C) $\frac { \sqrt { 42 } } { \sqrt { 7 } + \sqrt { 6 } }$
D) $\sqrt { 7 } + \sqrt { 6 }$
E) $\frac { 1 } { \sqrt { 7 } + \sqrt { 6 } }$