Which of the following is a multicellular organism ?

Options

A. Ameoba
B. Paramecium
C. Bacteria
D. Cockroach

Explanation

To determine which of the following is a multicellular organism, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of Organisms**:
- Organisms are classified into two main categories: unicellular and multicellular.
- Unicellular organisms consist of a single cell, while multicellular organisms are made up of multiple cells.

2. **Identify the Organisms in the Options**:
- Look at the options provided (though not listed here, we will assume common examples like amoeba, paramecium, bacteria, and cockroach).

3. **Classify Each Organism**:
- **Amoeba**: This is a unicellular organism. It consists of only one cell.
- **Paramecium**: This is also a unicellular organism. It is made up of a single cell.
- **Bacteria**: Bacteria are unicellular prokaryotic organisms. They consist of only one cell.
- **Cockroach**: This is a multicellular organism. It is made up of many cells and is classified as a eukaryotic organism.

4. **Select the Correct Answer**:
- Among the options, the only multicellular organism is the cockroach.

### Final Answer:
The multicellular organism from the options provided is **D. Cockroach**.

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