Which shows a correct plan to solve this problem?

jared was adding canned goods to his food pantry. he wanted to add 12 cans of corn and 24 cans of beans. he has 3 empty shelves. how many cans of goods is jared adding to his pantry?

a.
i just need to add the number of cans of beans and corn together and then multiply by 3.

b.
i just need to divide the number of cans of beans by the number of empty shelves (3).

c.
i just need to add the number of cans of beans and corn together and then divide by 3.

d.
i just need to add the number of cans of beans and corn together.