Name the preservatives used in jam and jellies.

Options

A. Salt
B. Sugar
C. Oil
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Preservatives**: Preservatives are substances added to food products to prevent spoilage caused by microbial growth. They help in extending the shelf life of food items.

2. **Identifying the Context**: The question specifically asks about preservatives used in jams and jellies, which are sweet fruit products.

3. **Analyzing the Options**: The options provided are:
- A) Salt
- B) Sugar
- C) Oil
- D) None of these

4. **Evaluating Each Option**:
- **Salt**: While salt is a common preservative in many foods, it is not typically used in jams and jellies.
- **Sugar**: Sugar is a key ingredient in jams and jellies and acts as a preservative by inhibiting microbial growth due to its high concentration.
- **Oil**: Oil is not used as a preservative in jams and jellies.
- **None of these**: This option is incorrect since sugar is indeed used as a preservative.

5. **Conclusion**: The main preservative used in jams and jellies is sugar, as it helps to prevent spoilage and maintains the quality of the product.

**Final Answer**: The preservative used in jams and jellies is **B) Sugar**.

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