In the following question, select the odd word pair from the given alternatives.

The logic followed here is

1. Scooter - Vehicle: This pair represents a general category and a specific item within that category. A scooter is a type of vehicle, so this pair is consistent and does not stand out as odd.

2. Triangle - Figure: This pair represents a specific geometric shape and a general term for any shape or form. A triangle is a type of figure, so this pair is also consistent and not odd.

3. Kidney - Organ: This pair represents a specific organ found in the human body. The word "kidney" and "organ" are related in terms of category and classification, so this pair is consistent and not odd.

4. Fruit - Apple: This pair is the odd one out. While an apple is indeed a type of fruit, it is also a specific example of a fruit. The word "fruit" is a general term that encompasses various types of fruits. The relationship between "fruit" and "apple" is different from the relationships in the other word pairs. The other pairs follow a pattern where one word is a specific example or type within the broader category represented by the other word. However, in the case of "fruit" and "apple," both words represent different levels of specificity within the same category, making it the odd pair.

Hence, the correct answer is 4) Fruit - Apple.