Step 1: Analyze the given pattern
The given pair is MNO : PQR. We can observe that the letters are moving forward in alphabetical order by one step:
- M → P
- N → Q
- O → R
Step 2: Apply the same pattern to XYZ
We apply the same rule to the letters XYZ:
- X → A
- Y → B
- Z → C
Answer: The correct answer is option (4): ABC.