Step 1: Analyze the Pattern The provided example is TUV : VYB. Each letter in the first word is transformed based on a consistent shift: T to V (+2), U to Y (+2), and V to B (+2). All letters are shifted forward by two positions.
Step 2: Apply Pattern to PRA Applying the identical two-position forward shift to PRA yields: P becomes R, R becomes V, and A becomes O. Therefore, PRA is encoded as RVO.
Answer: The correct option is (4): RVO.