Pollen grains in majority of angiosperms are shed at:

The correct answer is Option (1) → 2-celled stage

A mature pollen grain has two cells, the vegetative cell and the generative cell.

Option (1) 2-celled stage — Correct. This is the stage in over 60 per cent of angiosperms, which is the majority. The two male gametes are formed later, from the generative cell.

Note: A similar question was also asked in CUET (UG) 2026 on 18-05-2026 (Slot 1).

NCERT Extract:
Stamen, Microsporangium and Pollen Grain – “… When the pollen grain is mature it contains two cells, the vegetative cell and generative cell …. The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus. The generative cell is small and floats in the cytoplasm of the vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus. In over 60 per cent of angiosperms, pollen grains are shed at this 2-celled stage. In the remaining species, the generative cell divides mitotically to give rise to the two male gametes before pollen grains are shed (3-celled stage).”