A sarcodine causing dysentry is

Options

A. Giardia
B. Entamoeba
C. Amoeba
D. Tryponosoma

Answer

To answer the question "A sarcodine causing dysentery is," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term "Sarcodine":**
- Sarcodines are a class of protozoa that include organisms like amoebas. They are characterized by their ability to form pseudopodia for movement and feeding.

2. **Identify the Types of Organisms Listed:**
- The options given are:
A. Giardia
B. Entamoeba
C. Amoeba
D. Trypanosoma

3. **Recognize the Disease "Dysentery":**
- Dysentery is an intestinal infection that results in severe diarrhea with the presence of blood and mucus in the feces. It can be caused by various pathogens, including certain protozoa.

4. **Determine Which Organism Causes Dysentery:**
- Among the options, we need to identify which one is known to cause dysentery.
- **Giardia** is known to cause giardiasis, not dysentery.
- **Entamoeba**, specifically **Entamoeba histolytica**, is known to cause amoebic dysentery.
- **Amoeba** is a general term and does not specify a particular species that causes dysentery.
- **Trypanosoma** is associated with diseases like sleeping sickness, not dysentery.

5. **Conclude the Answer:**
- Based on the identification, the organism that causes dysentery is **Entamoeba**, specifically **Entamoeba histolytica**.

### Final Answer:
The sarcodine causing dysentery is **B. Entamoeba**.