Assertion: The seeds of Gymnosperms are naked.
Reason: Gymnosperm is a type of phanerogarns.

Options

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

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "The seeds of Gymnosperms are naked."
- This is true because Gymnosperms, such as conifers, produce seeds that are not enclosed in an ovary; hence, they are referred to as "naked seeds."

2. **Understanding the Reason**:
- The reason given is "Gymnosperm is a type of phanerogams."
- This is also true. Phanerogams are seed-producing plants, and Gymnosperms fall under this category.

3. **Analyzing the Relationship**:
- While both the assertion and the reason are true, we need to determine if the reason correctly explains the assertion.
- The fact that Gymnosperms are phanerogams does not directly explain why their seeds are naked. The nakedness of the seeds is due to their specific reproductive structures, not merely because they are phanerogams.

4. **Conclusion**:
- Since both statements are true, but the reason does not provide a correct explanation for the assertion, the correct answer is that both the assertion and reason are true, but the reason is not the correct explanation of the assertion.

### Final Answer:
- The correct option is: **Both A and R are true, but R is not the correct explanation of A.**

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