Raw meat is is preserved by adding a small amount of salt to it. The bacteria responsible for spoiling ............

Options

A. it loses water due to reverse osmosis and gets destroyed
B. it gains water due to reverse osmosis and gets destroyed
C. it loses water due to osmosis and gets destroyed
D. it gains water due to osmosis and gets destroyed

Explanation

### Step-by-Step Solution:

1. **Understanding the Process of Preservation**:
- Raw meat is preserved by adding salt. The primary reason for this is to inhibit the growth of bacteria that cause spoilage.

2. **Osmosis Concept**:
- When salt is added to raw meat, it creates a hypertonic environment. This means that the concentration of solutes (salt) outside the bacterial cells is higher than inside the cells.

3. **Effect of Salt on Bacteria**:
- Due to osmosis, water moves from an area of higher concentration (inside the bacterial cells) to an area of lower concentration (the salt solution outside). This results in the bacterial cells losing water.

4. **Consequences for Bacteria**:
- As the bacteria lose water, they undergo plasmolysis, which is the process where the cell membrane pulls away from the cell wall due to the loss of water. This can lead to the death of the bacteria.

5. **Conclusion**:
- Therefore, the addition of salt to raw meat effectively preserves it by causing the bacteria to lose water and die, thus preventing spoilage.

### Final Answer:
The bacteria responsible for spoiling raw meat lose water due to osmosis when salt is added, leading to their destruction.