Concept:Olericulture is a branch of horticulture that deals with vegetable cultivation.Explanation:The term olericulture specifically refers to the study of vegetables, including their propagation, production, harvesting, and post-harvest handling.For comparison, other branches study different crops:
Study of fruits
Pomology
Study of flowers
Floriculture
Study of Vegetables
Olericulture
Hence, the correct answer is vegetables.Answer:A. Vegetables