Assertion :- Vitamins are essential for healthy life.
Reason:- Vitamins regulate metabolism.

Options

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

Answer

To solve the question regarding the assertion and reason about vitamins, we can follow these steps:

### Step 1: Analyze the Assertion
The assertion states that "Vitamins are essential for healthy life."
- **Explanation**: Vitamins are indeed essential nutrients required by the body for various functions, including growth, repair, and maintenance of health. Without adequate vitamins, the body cannot function optimally.

### Step 2: Analyze the Reason
The reason states that "Vitamins regulate metabolism."
- **Explanation**: This statement is also true. Vitamins play a crucial role in metabolic processes, acting as coenzymes or cofactors in biochemical reactions that convert food into energy and support various bodily functions.

### Step 3: Determine the Relationship
Now, we need to determine if the reason correctly explains the assertion.
- Since vitamins are essential for a healthy life and one of their primary roles is to regulate metabolism, the reason does indeed provide a correct explanation for why vitamins are essential.

### Step 4: Choose the Correct Option
Based on the analysis:
- Both the assertion and reason are true, and the reason correctly explains the assertion.
- Therefore, the correct option is: "Both assertion and reason are true, and reason is correct explanation of assertion."

### Final Answer
The correct option is: **4. Both assertion and reason are true, but reason is correctly explaining the assertion.**

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