Identify and name the two parts in a flower which are most important…

The correct answer is Option (3) → 3-Anther, 7-ovary

The stamen (male organ) and the pistil (female organ) are the essential parts of a flower for sexual reproduction. The anther makes the pollen grains; the ovary holds the ovules, which become seeds.

Option (1) 1-Style. 3-Stamen — Incorrect. Part 1 is the style, which only carries the pollen tube to the ovary, and part 3 is an anther, not the whole stamen.

Option (2) 4-filament, 6 - thalamus — Incorrect. The filament only holds up the anther, and the thalamus is the base on which the flower parts sit.

Option (3) 3-Anther, 7-ovary — Correct. The anther (3) forms the male gametophytes and the ovary (7) carries the ovules with the female gametophyte.

Option (4) 2-Stigma, 5- sepals — Incorrect. The stigma receives pollen, but the sepals only protect the bud; they play no part in reproduction.