I think it’s the second one but i am not 100% sure
The answer is A i'm positive I used my caculater
Car A: 24.8 Miles per gallon.
Car B: 21 Miles per gallon
Car C: 18.75 Miles per gallon
Car A is the answer. Make sure when you are putting work you multiply each number at the start of this answer with 0.62. That'll be how many Kilometers per gallon. Just divide the amount of Miles by the gallons for unit rate.
Remember that
1m=100cm
8m=800cm
800m=80,000cm
Im not sure why it brought me here it just brought me here sorry