The disease caused by Fasciola is

Options

A. Liver rot
B. Cysticercosis
C. Taeniasis
D. None of the above

Answer

**Step-by-Step Solution:**

1. **Identify the Organism:** The question asks about the disease caused by Fasciola. The full name of this organism is Fasciola hepatica.

2. **Understand the Implications of the Name:** The term "hepatica" in the name indicates a relationship to the liver. This suggests that the disease caused by this organism is related to liver dysfunction.

3. **Name the Disease:** The disease associated with Fasciola hepatica is called fascioliasis. This disease is commonly referred to as liver rot.

4. **Identify Hosts:** Fasciola hepatica primarily infects sheep and goats, where it resides in the liver and bile ducts. The intermediate host in its life cycle is a snail.

5. **Consequences of Infection:** The presence of Fasciola hepatica in the liver and bile ducts can lead to blockage, which can be fatal to the host animal.

6. **Evaluate Options:** Given the context, the correct answer to the question is that the disease caused by Fasciola is fascioliasis, or liver rot.

7. **Select the Correct Answer:** Based on the analysis, the correct answer is option number one: liver rot.