Odd One Out: Explanation

The given options for the odd one out are:

a) DE
b) GH
c) LM
d) ON

To determine the odd one out among these options, we need to analyze the patterns or relationships between the letters in each option.

Pattern Analysis:

1. Option a) DE:
- The letters in this option are consecutive in the English alphabet.
- There is a difference of 1 letter between D and E.

2. Option b) GH:
- Similar to option a), the letters in this option are consecutive in the English alphabet.
- There is a difference of 1 letter between G and H.

3. Option c) LM:
- Again, the letters in this option are consecutive in the English alphabet.
- There is a difference of 1 letter between L and M.

4. Option d) ON:
- Unlike the previous options, the letters in this option are not consecutive in the English alphabet.
- There is a difference of 3 letters between O and N.

Finding the Odd One Out:

By analyzing the patterns, we can observe that options a), b), and c) follow a similar pattern where the letters are consecutive in the English alphabet with a difference of 1 letter. However, option d) breaks this pattern as the letters are not consecutive and have a difference of 3 letters.

Therefore, the odd one out among the given options is option d) ON.

Conclusion:

The odd one out among the given options (DE, GH, LM, ON) is option d) ON because it breaks the pattern of consecutive letters with a difference of 1 letter.