Assertion :- Polygonum type of embryosac, is most common in angiosperm.
Reason :- lt is found in most of Angiosperm plants

Options

A. A
B. B
C. C
D. D

Answer

To analyze the assertion and reason provided in the question, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that the Polygonum type of embryo sac is the most common in angiosperms.
- This is a true statement because the Polygonum type is indeed the most prevalent type of embryo sac found in flowering plants (angiosperms).

2. **Understanding the Reason**:
- The reason states that the Polygonum type of embryo sac is found in most angiosperm plants.
- This statement is also true, as the Polygonum type is widely distributed among angiosperms.

3. **Connecting Assertion and Reason**:
- Now, we need to determine if the reason provided correctly explains the assertion.
- Since the reason states that the Polygonum type is found in most angiosperms, it supports the assertion that it is the most common type of embryo sac in these plants.

4. **Conclusion**:
- Both the assertion and the reason are true, and the reason provides a correct explanation for the assertion.
- Therefore, the correct answer is that both the assertion and reason are correct, and the reason is the correct explanation for the assertion.

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