Concept: This question tests your knowledge of different types of placentation in flowering plants, which refers to the arrangement of ovules within the ovary.

Why (D) is correct: The mismatched pair is Parietal – Tomato. In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part. Examples include mustard and Argemone. Tomato exhibits axile placentation, where the placenta is axial and the ovules are attached to it in a multilocular ovary.

Why other options are wrong:

• (A) Axile – China rose: This is a correct match. China rose (Hibiscus) shows axile placentation.
• (B) Basal – Sunflower: This is a correct match. Sunflower (Helianthus) shows basal placentation.
• (C) Free central – Dianthus: This is a correct match. Dianthus (carnation) shows free central placentation.

Common Mistake: Students often confuse parietal and axile placentation, especially when the ovary is unilocular in parietal and multilocular in axile.

NEET Tip: Memorize common examples for each type of placentation. For axile, think 'China rose, Lemon, Tomato'. For parietal, think 'Mustard, Argemone'. For basal, think 'Sunflower, Marigold'. For free central, think 'Dianthus, Primrose'.

Correct Answer: (D)