Bacteriostatic drugs work by

Options

A. Arresting the growth of organisms
B. By increasing immunity and resistance of body to infection
C. By killing the organism in the body
D. Both (1) & (2)

Answer

To solve the question "Bacteriostatic drugs work by," we need to analyze the options provided and understand the function of bacteriostatic drugs.

### Step-by-Step Solution:

1. **Understanding Bacteriostatic Drugs**:
- Bacteriostatic drugs are designed to inhibit the growth and reproduction of bacteria. The term "bacteriostatic" itself indicates that these drugs keep bacteria in a state of rest or prevent them from multiplying.

2. **Mechanism of Action**:
- These drugs do not kill bacteria outright; instead, they stop bacteria from growing and reproducing. This is achieved through various mechanisms, such as inhibiting DNA replication and working alongside the immune system to help eliminate the bacteria from the body.

3. **Evaluating the Options**:
- **Option A**: "Arresting the growth of organisms" - This is true, as bacteriostatic drugs prevent bacterial growth.
- **Option B**: "By increasing immunity and resistance of body to infection" - This is also true, as these drugs can assist the immune system in fighting off infections.
- **Option C**: "By killing the organism in the body" - This is false, as bacteriostatic drugs do not kill bacteria; they only inhibit their growth.
- **Option D**: "Both 1 and 2" - Since both options A and B are correct, this option is also correct.

4. **Conclusion**:
- The correct answer is **Option D**, as bacteriostatic drugs work by both arresting the growth of organisms and increasing the immunity and resistance of the body to infection.

### Final Answer:
**Option D: Both 1 and 2.**

---