Simplify the Radical Expression $$\sqrt { \frac { 1 } { 16 } }$$

Multiple Choice

Simplify the radical expression. Assume all variables represent positive real numbers.
- $$\sqrt { \frac { 1 } { 16 } }$$

A) 16
B) $\frac { 1 } { 4 }$
C) 4
D) $\frac { 1 } { 256 }$