Approximate the Number Using a Calculator $2 ^{- 3.3}$ A) $0.102$ B) $- 6.600$

Approximate the number using a calculator. Round your answer to three decimal places.
- $2 ^{- 3.3}$

A) $0.102$
B) $- 6.600$
C) $0.402$
D) $10.890$