Indian tropical fruit trees and fruit bearing
Trees fruit before the monsoon season to maximize seed germination and seedling recruitment. previous studies have shown that in many species, fruiting occurs just before the wet season such that seeds germinate and establish during the wet season when conditions are most favourable.

Smythe N. 1970 Relationships between fruiting seasons and seed dispersal methods in a Neotropical forest. Am. Nat. 104, 25–35. (doi:10.1086/282638)

So the answer is 4.