Concept:Site selection for vegetable crops depends on factors that support good growth and quick sale of produce.Explanation:I. Nearness to the market is important because vegetables are perishable and must be sold quickly.II. Topography of the land is important because vegetable farms need well-drained, level or gently sloping land for easy cultivation and irrigation.III. Nearness to the sea is not a general requirement for vegetable crop production and may even introduce salty conditions.Therefore, the correct factors are I and II only.Answer:A. I and II only