Solution: Choice B is correct

The car travels at an average speed of 60 miles per hour for h hours, with an average of 23 miles per gallon.

Therefore, the gallons of fuel used will be 60h/23 gallons.  (Distance/Average fuel consumption)

Also, since the car begins with 13 gallons of fuel and is left with 10 gallons of fuel in its tank after the trip.

Therefore 13- 60h/23 = 10.