Agaricus is

Options

A. Bread Molud
B. Button Mushroom
C. Paddy Straw Mushroom
D. Oyster Mushroom.

Answer

**Step-by-Step Solution:**

1. **Identify the Organism:** The question asks about "Agaricus." We need to determine what Agaricus refers to in the context of fungi.

2. **Understand the Options:** The options provided are:
- Bread mould
- Button mushroom
- Paddy straw mushroom
- Oyster mushroom

3. **Research Agaricus:** Agaricus is a genus of fungi that includes several species, one of the most well-known being Agaricus bisporus, which is commonly referred to as the button mushroom.

4. **Analyze Characteristics:** The button mushroom is characterized by its small, round, button-like cap, which is why it is named so. This distinctive feature helps in identifying it.

5. **Select the Correct Answer:** Based on the information gathered, the correct identification of Agaricus is that it is known as the button mushroom.

**Final Answer:** Agaricus is the button mushroom.

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