carpool to school ride a bus to school ride a bike to school drive alone to school
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Cars are powered by gasoline made from oil. Which is the best way to conserve gasoline?
Possibilities:
- carpool to school
- ride a bus to school
- ride a bike to school
- drive alone to school

ride a bike to school