Concept: This question tests your knowledge of different types of plant tissues and their characteristic features or functions.

Why (A) is correct:

• A - Meristem: Meristematic tissues are characterized by cells that are actively dividing, leading to growth in plants. Thus, A matches with (ii) Actively dividing cells.
• B - Parenchyma: Parenchyma cells are typically thin-walled and often involved in storage, photosynthesis, and secretion. Thus, B matches with (iv) Thin-walled cells.
• C - Sclerenchyma: Sclerenchyma provides mechanical support and is characterized by lignified walls, making them hard and rigid. Thus, C matches with (i) Lignified walls.
• D - Collenchyma: Collenchyma provides flexible support to young stems and petioles and is characterized by unevenly thickened walls, particularly at the corners. Thus, D matches with (iii) Unevenly thickened walls.

Why other options are wrong:

• Options B, C, and D incorrectly match the tissue types with their characteristic features.

NEET Tip: Remember the primary function and key structural feature of each simple permanent tissue: Parenchyma (storage, photosynthesis, thin walls), Collenchyma (flexible support, unevenly thickened walls), Sclerenchyma (mechanical support, lignified walls).

Correct Answer: (A)