FRIDGE/MACHINE/USED/KEEP/FOOD/FRESH.A. A FRIDGE IS A MACHINE WHICH...

14. fridge/machine/used/keep/food/fresh.A. A fridge is a machine which is used for keeping food fresh.B. A fridge is a machine is used for keeping food fresh.C. A fridge is a machine that used for keeping food fresh.D. A fridge is a machine which is used to keeping food fresh.