Simplify the Expression $$\sqrt { \frac { 1715 } { 8 } }$$

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $$\sqrt { \frac { 1715 } { 8 } }$$

A) $\frac { 7 } { \sqrt { 8 } }$
B) $\frac { 2 } { 7 }$
C) $\frac { 7 \sqrt { 70 } } { 4 }$
D) $\frac { \sqrt { 5 } } { 2 }$