Use the Laws of Exponents to Simplify Each Expression Using $2 ^{- 4}$

Multiple Choice

Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
- $2 ^{- 4}$

A) $- 16$
B) $\frac { 1 } { 8 }$
C) $\frac { 1 } { 16 }$
D) 16