Assertion (A): Congenital diseases are not communicable.
Reason (R): Congenital diseases are caused by microorganisms.

Options

A. Both A and R are true and R is the correct explanation for A.
B. Both A and R are true, but R is not the correct explanation for A.
C. A is true and R is false.
D. A is false and R is true.

Explanation

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that "Congenital diseases are not communicable."
- Congenital diseases are conditions that are present at birth and can be inherited from parents. They are typically caused by genetic factors, chromosomal abnormalities, or environmental influences during pregnancy.

2. **Understanding the Reason (R)**:
- The reason states that "Congenital diseases are caused by microorganisms."
- This statement is incorrect because congenital diseases are not caused by microorganisms (like bacteria or viruses). Instead, they are primarily caused by genetic factors or developmental issues during pregnancy.

3. **Evaluating the Assertion and Reason**:
- Since congenital diseases are not communicable, the assertion is true.
- However, the reason provided is false because congenital diseases are not caused by microorganisms.

4. **Conclusion**:
- The assertion is true, but the reason is false. Therefore, the correct relationship is that the assertion is correct, while the reason is incorrect.

### Final Answer:
- Assertion (A) is true, and Reason (R) is false.

---