Assertion (A): Food can be preserved by adding salt.
Reason (R): Salt increases the moisture content in which microorganisms are unable to grow.

Options

A. Both A and R are true and R is the correct explanation for A.
B. Both A and Rare true, but R is not the cor- rect 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 "Food can be preserved by adding salt." This is true as salt is a common preservative used in various food items, such as pickles, to inhibit the growth of microorganisms.

2. **Understanding the Reason (R)**: The reason states that "Salt increases the moisture content in which microorganisms are unable to grow." This statement is misleading. While salt does play a role in food preservation, it does not increase moisture content. In fact, high concentrations of salt can draw moisture out of food and create an environment that is unfavorable for microbial growth.

3. **Evaluating the Relationship**: We need to determine if the reason correctly explains the assertion. Since the reason is incorrect (as salt does not increase moisture content), it cannot be considered a valid explanation for the assertion.

4. **Conclusion**: Based on the evaluation, we conclude that the assertion is true (food can be preserved by adding salt), but the reason is false (salt does not increase moisture content). Therefore, the correct answer is that the assertion is true but the reason is false.

**Final Answer**: Assertion is true but reason is false.

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