You save $10 on gas every week because you take the bus to school. You have class 5 days a week. What is your average benefit per day of taking the bus to school?

You save $10 on gas every week because you take the bus to school. You have class 5 days a week. What is your average benefit per day of taking the bus to school?
A.$5
B.$0
C.$2
D.$10
正确答案：$2