`{:(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, five groups of letters are given. Four of them are alike in a certain way while one is different. Choose the odd one.

Options

A. PRT
B. MOQ
C. GEC
D. TVX

Answer

To solve the problem, we need to analyze the groups of letters given in each option and determine which one does not follow the same pattern as the others.

### Step-by-Step Solution:

1. **Identify the Groups**: We have four groups of letters:
- Option 1: P, R, T
- Option 2: M, O, Q
- Option 3: G, E, C
- Option 4: T, V, X

2. **Analyze Option 1 (P, R, T)**:
- P to R: Move forward 2 steps (P → Q → R)
- R to T: Move forward 2 steps (R → S → T)
- **Pattern**: Each letter moves forward by 2 steps.

3. **Analyze Option 2 (M, O, Q)**:
- M to O: Move forward 2 steps (M → N → O)
- O to Q: Move forward 2 steps (O → P → Q)
- **Pattern**: Each letter moves forward by 2 steps.

4. **Analyze Option 3 (G, E, C)**:
- G to E: Move backward 2 steps (G → F → E)
- E to C: Move backward 2 steps (E → D → C)
- **Pattern**: Each letter moves backward by 2 steps.

5. **Analyze Option 4 (T, V, X)**:
- T to V: Move forward 2 steps (T → U → V)
- V to X: Move forward 2 steps (V → W → X)
- **Pattern**: Each letter moves forward by 2 steps.

6. **Conclusion**:
- Options 1, 2, and 4 all follow the pattern of moving forward by 2 steps.
- Option 3 is different as it follows the pattern of moving backward by 2 steps.
- Therefore, the odd one out is **Option 3 (G, E, C)**.

### Final Answer:
The odd one out is **G, E, C**.