How Many $\textbf{ moles }$

How many $\textbf{ moles }$ of oxygen $\textbf{ atoms }$ are in 0.500 grams of CO₂?

A) 0.500 x 10 ^{- 2}
B) 1.00
C) 0.250
D) 1.14 x 10 ^{- 2}
E) 2.27 x 10 ^{- 2}