For this question, take air to contain $21\%$ oxygen. Under room conditions, what is the smallest volume of air needed to ensure that $10\ \text{cm}^3$ of butane gas undergoes complete combustion?
- A$14\ \text{cm}^3$
- B$27\ \text{cm}^3$
- C$65\ \text{cm}^3$
- D$310\ \text{cm}^3$