The correct option is (c) 1 and 3 only.
Explanation
The stamen represents the male reproductive organ of a flower. Collectively, the stamens form the androecium. A typical stamen consists of two distinct parts: a long stalk and a terminal structure responsible for pollen production.
Statement-wise Analysis
- Statement 1 is Correct: The filament is the long, slender stalk of the stamen. Its proximal end is attached to the thalamus or the petal of the flower, supporting the anther at the top.
- Statement 2 is Incorrect: The ovary is the swollen basal part of the pistil (or carpel), which represents the female reproductive unit (gynoecium). It contains ovules and is not a component of the stamen.
- Statement 3 is Correct: The anther is the terminal, generally bilobed structure of the stamen. It contains microsporangia (pollen sacs) where pollen grains are produced.
Key Takeaway: The male reproductive unit (Stamen) consists of the Anther and Filament, whereas the female reproductive unit (Pistil/Carpel) consists of the Stigma, Style, and Ovary.