Ashley had 3/5 kilograms of watermelon in her refrigerator. one day, ashley and her family ate 1/3 kilograms of the watermelon in the fridge. how many kilograms of watermelon does jill have left?
a. 2/15 kilograms

b. 3/10 kilograms

c. 1/3 kilograms

d. 4/15 kilograms