Assertion: Visit of insects on flowers helps in pollination.
Reason: Insect-pollinated flowers produce pollen in large number.

Options

A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both Assertion and Reason are false.

Answer

### Step-by-Step Text Solution:

1. **Understanding the Assertion**: The assertion states that the visit of insects on flowers helps in pollination. This is true because insects are attracted to flowers primarily for their nectar, which they consume. During this process, they inadvertently transfer pollen from one flower to another, facilitating fertilization.

2. **Understanding the Reason**: The reason provided states that insect-pollinated flowers produce pollen in large numbers. This is also true. Insect-pollinated flowers have evolved to produce a substantial amount of pollen to increase the chances of successful pollination, as the probability of pollen transfer can be low.

3. **Connecting Assertion and Reason**: The reason explains the assertion well. The large production of pollen is an adaptation that ensures that even if not all pollen reaches another flower, there is still a significant chance of pollination occurring. Thus, the reason supports the assertion.

4. **Conclusion**: Both the assertion and reason are true, and the reason is indeed the correct explanation for the assertion. The relationship between insect visits and pollen production is a clear example of mutual adaptation in nature.

### Final Answer:
Both the assertion and the reason are true, and the reason is the correct explanation of the assertion.

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