Root hairs' structure and function in plants

Steps:

• Recall root hairs are tubular extensions of root epidermal cells that absorb water and nutrients.
• Verify statement 1: Root hairs maximize surface area for absorption, which is accurate.
• Verify statement 2: They arise from epidermal cells near the root tip, excluding the maturation zone, which holds true.
• Verify statement 3: Root hairs lack chloroplasts and perform absorption only, not photosynthesis, confirming correctness.

Why A is correct:

• All three statements align with the biological definition of root hairs as absorptive structures from epidermal cells.

Why the others are wrong:

• B omits correct statement 3 on function.
• C omits correct statement 2 on origin.
• D omits correct statement 1 on absorption role.

Final answer: A