Choose the group of letters which is different from others `:`

Options

A. CZHK
B. MLAG
C. XUBU
D. SENO

Explanation

To solve the question of identifying the group of letters that is different from the others, we will follow these steps:

### Step-by-Step Solution:

1. **List the Groups**: Identify the groups of letters provided in the question. The groups are:
- Group 1: C, Z, H, K, M, L, A, G, X, U, B, U
- Group 2: S, E, N, O

2. **Check for Repeated Characters**: Analyze each group for any repeated letters.
- In Group 1 (C, Z, H, K, M, L, A, G, X, U, B, U), the letter 'U' appears twice.
- In Group 2 (S, E, N, O), there are no repeated letters.

3. **Identify the Odd One Out**: Since Group 1 has a repeated letter ('U'), while Group 2 does not have any repeated letters, we can conclude that Group 2 is the odd one out.

4. **Final Conclusion**: Therefore, the group of letters that is different from the others is Group 2: S, E, N, O.