Rationalize the Denominator $\frac { \sqrt { 7 } } { 7 \sqrt { 2 } - \sqrt { 7 } }$

Multiple Choice

Rationalize the denominator. Assume that all variables represent nonnegative numbers and that the denominator is not
zero.
- $\frac { \sqrt { 7 } } { 7 \sqrt { 2 } - \sqrt { 7 } }$

A) $\frac { \sqrt { 14 } - 1 } { 13 }$
B) $\frac { \sqrt { 14 } + 1 } { 15 }$
C) $\frac { \sqrt { 2 } + 1 } { 13 }$
D) $\frac { \sqrt { 14 } + 1 } { 13 }$