[A]: Phloem is the main conducting tissue.
[R]: Phloem does the· function of conduction of water.

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 and R is false
D. If both A and R are false

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Phloem is the main conducting tissue."
- Phloem is indeed a type of vascular tissue in plants responsible for the transport of organic nutrients, particularly the products of photosynthesis (like sugars) from the leaves to other parts of the plant.

2. **Understanding the Reason**:
- The reason states that "Phloem does the function of conduction of water."
- This statement is incorrect. The primary function of phloem is to transport food (nutrients), not water. The conduction of water in plants is primarily carried out by xylem, another type of vascular tissue.

3. **Evaluating the Truth of Both Statements**:
- Since the assertion is true (phloem is the main conducting tissue for nutrients), but the reason is false (phloem does not conduct water), we conclude that:
- The assertion is true, and the reason is false.

4. **Selecting the Correct Option**:
- Based on the evaluation, the correct option is: "If assertion is true, the reason is false."

### Final Answer:
The correct option is C: If assertion is true, the reason is false.

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