If Jill's MRS of popcorn for candy is 2 (popcorn is on the horizontal axis), Jill would willingly give up: Group of answer choices 2, but no more than 2, units of popcorn for an additional unit of candy. 1, but no more than 1, unit of candy for an additional 2 units of popcorn. 2, but no more than 2, units of popcorn for an additional 2 units of candy. 2, but no more than 2, units of candy for an additional unit of popcorn.