`{:(A,B,C,D,E,F,G,H,I,J,K,L,M),(1,2,3,4,5,6,7,8,9,10,11,12,13),(N,O,P,Q,R,S,T,U,V,W,X,Y,Z),(14,15,16,17,18,19,20,21,22,23,24,25,26):}`
In each of the following questions, four groups of letters are given, three of them are alike in a certain way while one is different. Choose the odd one.

Options

A. STU
B. RQP
C. MLK
D. HGF

Answer

To solve the problem, we need to analyze the four groups of letters given and identify the one that does not follow the same pattern as the others.

Let's break it down step by step:

### Step 1: Analyze the first group of letters (S, T, U)
- **S to T**: This is a forward movement of 1 step in the alphabet.
- **T to U**: This is again a forward movement of 1 step in the alphabet.
- **Pattern**: This group moves forward by 1 step each time.

### Step 2: Analyze the second group of letters (R, Q, P)
- **R to Q**: This is a backward movement of 1 step in the alphabet.
- **Q to P**: This is again a backward movement of 1 step in the alphabet.
- **Pattern**: This group moves backward by 1 step each time.

### Step 3: Analyze the third group of letters (M, L, K)
- **M to L**: This is a backward movement of 1 step in the alphabet.
- **L to K**: This is again a backward movement of 1 step in the alphabet.
- **Pattern**: This group also moves backward by 1 step each time.

### Step 4: Analyze the fourth group of letters (H, G, F)
- **H to G**: This is a backward movement of 1 step in the alphabet.
- **G to F**: This is again a backward movement of 1 step in the alphabet.
- **Pattern**: This group also moves backward by 1 step each time.

### Step 5: Compare the patterns
- **Group 1 (S, T, U)**: Moves forward by 1 step.
- **Group 2 (R, Q, P)**: Moves backward by 1 step.
- **Group 3 (M, L, K)**: Moves backward by 1 step.
- **Group 4 (H, G, F)**: Moves backward by 1 step.

### Conclusion
The first group (S, T, U) is the only group that moves forward, while the other three groups (R, Q, P), (M, L, K), and (H, G, F) all move backward. Therefore, the odd one out is:

**Answer: Option 1 (S, T, U)**

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