Among the following, which is/are correct?

Options

A. Both cyclopentadiencyl anion and benzene are aromatic and have the same stabilty.
B. Benzene is aromatic and more stable than cyclopentadienyl anion and it is non-aromaitic
C. Both cyclopentadienyl anion and benzene are aromatic but benzene is more stable than cyclopentadienyl anion.
D. Cyclopentadienyl anion is more stable than benzene though both are aromatic

Explanation

To solve the question regarding the aromaticity and stability of the given compounds, we will analyze each compound step by step.

### Step 1: Identify the Compounds
The two compounds we need to analyze are:
1. Benzene (C6H6)
2. Cyclopentadienyl anion (C5H5^-)

### Step 2: Check Aromaticity of Benzene
- **Cyclic**: Benzene has a ring structure.
- **Planar**: The structure of benzene is planar.
- **Conjugation**: Benzene has alternating double bonds, allowing for conjugation.
- **Pi Electrons**: Benzene has 6 pi electrons, which fits the formula 4n + 2 (where n = 1).

Since benzene satisfies all the criteria for aromaticity, it is classified as an aromatic compound.

### Step 3: Check Aromaticity of Cyclopentadienyl Anion
- **Cyclic**: Cyclopentadienyl anion is also a ring structure.
- **Planar**: The cyclopentadienyl anion is planar.
- **Conjugation**: It has alternating double bonds and a lone pair contributing to the pi system.
- **Pi Electrons**: The cyclopentadienyl anion has 6 pi electrons (4 from the double bonds and 2 from the lone pair), which also fits the formula 4n + 2 (where n = 1).

Since cyclopentadienyl anion satisfies all the criteria for aromaticity, it is also classified as an aromatic compound.

### Step 4: Compare Stability of the Compounds
- **Benzene**: It is a neutral molecule, which generally indicates stability.
- **Cyclopentadienyl Anion**: It carries a negative charge, making it a charged species. Charged species are typically less stable than neutral species.

### Conclusion
Both benzene and cyclopentadienyl anion are aromatic, but benzene is more stable than cyclopentadienyl anion due to its neutral nature.

### Final Answer
The correct statement is that both cyclopentadienyl anion and benzene are aromatic, but benzene is more stable than cyclopentadienyl anion.