Q. In mycorrhizal association, the advantage of plant is:

Correct Answer: d) Increased mineral absorption and diseases protection

Explanation:
– In a mycorrhizal association, the fungus extends the root’s effective surface area, improving uptake of minerals (especially phosphorus) and water.
– The fungus also helps protect the plant from certain soil pathogens, enhancing disease resistance.
– The plant, in turn, provides carbohydrates (food) to the fungus. So option b (Food) is not an advantage to the plant.
– Hence, option d best describes the plant’s benefits.