Which was the most important contribution to society from the early selective breeder Luther Burbank? A. an increased world food supply B. more prize-winning rose varieties C. a better understanding of devastating diseases D. many kinds of vegetables related to wild mustard

"An increased world food supply" is the one among the following choices given in the question that was the most important contribution to society from the early selective breeder Luther Burbank. The correct option among all the options that are given in the question is the first option or option "A".