Concept:Fruits with fibrous, hollow, or light structures can float on water and get carried to new places.Explanation:The coconut has a thick fibrous husk that traps air. This makes it light enough to float in water. It can travel across oceans and reach distant shores. This is why coconut is dispersed by water. Other options like mango, maize, and cocoa are not water-dispersed fruits.Answer:Option A – Coconut.