Amoebic dysentery is caused by a

Options

A. Trypanosoma brucei
B. Escherichia coli
C. Entamoeba histolytica
D. Plasmodium.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question:**
- The question asks about the causative agent of amoebic dysentery.

2. **Analyzing the Options:**
- **Option A: Trypanosoma brucei**
- This is a protozoan that causes sleeping sickness, not amoebic dysentery.
- **Option B: Escherichia coli**
- This is a bacterium commonly found in the intestines, but it does not cause amoebic dysentery.
- **Option C: Entamoeba histolytica**
- This is a protozoan known to cause amoebic dysentery (also called amoebiasis).
- **Option D: Plasmodium**
- This is a protozoan that causes malaria, not amoebic dysentery.

3. **Identifying the Correct Answer:**
- Among the options, **Entamoeba histolytica** is the only organism that is known to cause amoebic dysentery.

4. **Conclusion:**
- Therefore, the correct answer is **Option C: Entamoeba histolytica**.

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