Concept: This question tests your knowledge of floral morphology, specifically the characteristics of the gynoecium in different plant families, which is crucial for plant identification and classification.

Why (B) is correct: The family Solanaceae (e.g., potato, tomato, brinjal) is characterized by a bicarpellary (two carpels), syncarpous (fused carpels) gynoecium. The ovary is typically bilocular (two chambers) with a characteristic axile placentation where the placenta is swollen. A distinctive feature often observed is an oblique septum, meaning the partition between the two locules is not perfectly transverse but slightly angled.

Why other options are wrong:

• (A) Cruciferae (Brassicaceae): Has bicarpellary, syncarpous gynoecium, but typically parietal placentation and a false septum (replum).
• (C) Cucurbitaceae: Usually tricarpellary, syncarpous, with parietal placentation.
• (D) Liliaceae: Typically tricarpellary, syncarpous, with trilocular ovary and axile placentation, but lacks the oblique septum.

NEET Tip / Mnemonic: Remember 'SOLAN' for Solanaceae: Swollen placenta, Oblique septum, Locular (bilocular), Axile placentation, No free carpels (syncarpous). This helps recall the key gynoecium features.

Correct Answer: (B)