Among the following which one is used in the treatment of malaria ?

Options

A. Aspirin
B. morphine
C. quinine
D. reserpine

Answer

To determine which substance is used in the treatment of malaria among the given options, we can analyze each option based on their known medicinal uses.

### Step-by-Step Solution:

1. **Identify the Options**:
- The question provides several options: Aspirin, Morphine, Quinone, and a tranquilizer (not specifically named).

2. **Analyze Aspirin**:
- Aspirin is known as an antipyretic, which means it is used to reduce fever. It does not have a direct role in treating malaria.

3. **Analyze Morphine**:
- Morphine is an analgesic, primarily used for pain relief. While it can affect the central nervous system, it is not used to treat malaria.

4. **Analyze Quinone**:
- Quinone is mentioned as the most widely used drug for the treatment of malaria. This indicates its effectiveness in combating the disease.

5. **Analyze the Tranquilizer**:
- The tranquilizer mentioned acts on the central nervous system and is used for anxiety and related disorders. It does not have a role in treating malaria.

6. **Conclusion**:
- Based on the analysis, the correct answer to the question of which substance is used in the treatment of malaria is **Quinone**.

### Final Answer:
**Quinone is used in the treatment of malaria.**

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