Question

Plz help ASAP
Which car has the greatest efficiency?
1) a 900 kg car that travels 20 km per liter of fuel
2) a 900 kg car that travels 15 km per liter of fuel
3) a 1,200 kg car that travels 15 km per liter of fuel
4) a 1,200 kg car that travels 20 km per liter of fuel





















































she/they
it’s the last one