Types of cells in 2 celled pollen grains are :

The correct answer is Option (4) → Vegetative and Generative

Option (1) Central cell and Synergids — Incorrect. These cells belong to the embryo sac, the female gametophyte.

Option (2) Antipodals and Megaspore — Incorrect. These too are parts of the female side, in the ovule.

Option (3) Micropylar and Filliform — Incorrect. These are not cells: the micropyle is an opening of the ovule, and the filiform apparatus is a structure of the synergids.

Option (4) Vegetative and Generative — Correct. A mature pollen grain has a large vegetative cell with food reserve and a small generative cell, which later forms the two male gametes.

NCERT Extract:
Stamen, Microsporangium and Pollen Grain – “… When the pollen grain is mature it contains two cells, the vegetative cell and generative cell (Figure 1.5b). 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).”

Figure 1.5 (a) Enlarged view of a pollen grain tetrad; (b) stages of a microspore maturing into a pollen grain