Read the following statements and select the correct option.
Assertion : In gymnosperms, endosperm is formed before fertilization and is haploid.
Reason : In angiosperms, endosperm is formed after fertilization and is diploid.

Options

A. both statements I and II are correct
B. both statements I and II are incorrect
C. statements I is correct and statement II is incorrect
D. statements II is correct and statement I is incorrect

Answer

To solve the question, we need to evaluate the assertion and reason provided in the statements regarding gymnosperms and angiosperms.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "In gymnosperms, endosperm is formed before fertilization and is haploid."
- In gymnosperms, the endosperm develops from the female gametophyte, which is indeed haploid (n). Therefore, this part of the assertion is correct.

2. **Understanding the Reason**:
- The reason states that "In angiosperms, endosperm is formed after fertilization and is diploid."
- In angiosperms, the endosperm is formed after fertilization, but it is triploid (3n), not diploid (2n). This is because the diploid nucleus from the fusion of the male gamete with the egg cell fuses with another male gamete to form the triploid endosperm. Thus, this part of the reason is incorrect.

3. **Conclusion**:
- Since the assertion is correct and the reason is incorrect, the correct option is: "Statement 1 is correct and Statement 2 is incorrect."

### Final Answer:
- The correct option is: **Statement 1 is correct and Statement 2 is incorrect.**

---