Concept: This question tests your knowledge of floral morphology, specifically the characteristics of the gynoecium (female reproductive part) in different plant families.

Why (B) is correct: Tulip belongs to the family Liliaceae. Plants in the Liliaceae family typically exhibit a tricarpellary syncarpous gynoecium, meaning they have three carpels that are fused together. The ovary is usually superior and trilocular.

Why other options are wrong:

• (A) Indigofera: Belongs to Fabaceae (Leguminosae), which has a monocarpellary ovary.
• (C) Brinjal: Belongs to Solanaceae, which typically has a bicarpellary syncarpous ovary.
• (D) Oat: Belongs to Poaceae (Gramineae), which has a monocarpellary or tricarpellary, but often reduced, ovary. The typical condition is not tricarpellary syncarpous in the same prominent way as Liliaceae.

NEET Tip: Memorize the floral formulas and key characteristics of important plant families like Liliaceae, Solanaceae, Fabaceae, and Poaceae. This will help you quickly identify features like carpel number and fusion.

Correct Answer: (B)