Pleurobrachia is

Options

A. Radially symmetrical
B. Bilateral symmetrical
C. Asymmetrical
D. Universal symmetrical

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the type of symmetry exhibited by Pleurobrachia.

2. **Defining Symmetry Types**:
- **Radial Symmetry**: An organism is radially symmetrical if it can be divided into two equal halves from multiple planes passing through its central axis.
- **Bilateral Symmetry**: An organism is bilaterally symmetrical if it can only be divided into two equal halves along one specific plane (usually the sagittal plane).
- **Asymmetrical**: An organism is asymmetrical if it cannot be divided into equal halves from any plane.
- **Universal Symmetry**: This term is not commonly used in biological contexts but would imply a symmetry that produces mirror images from any cut through the center.

3. **Analyzing Pleurobrachia**:
- Pleurobrachia is a member of the phylum Ctenophora, commonly known as comb jellies.
- It exhibits radial symmetry, meaning that if you cut Pleurobrachia from any point, it can be divided into two equal halves.

4. **Conclusion**: Based on the definitions and characteristics of Pleurobrachia, it is concluded that Pleurobrachia has radial symmetry.

5. **Final Answer**: Therefore, the correct answer is **Option A: Radially symmetrical**.