Which of the following are ways in which humans can conserve fuel? (select the five best answers.)
question 4 options:

take a bus instead of drive.

drive at high speeds whenever possible.

avoid maintaining your vehicle unless it's absolutely necessary.

let a vehicle's engine idle for 15 minutes instead of turning it off.

ride a bike to work instead of drive.

drive a vehicle with low mileage.

avoid carpooling.

share a ride with someone else.

call a store to see if they have what you want to buy.

drive a vehicle that can run on fuel that is 85 percent ethanol.