In the following question, select the related word pair from the given alternatives.
Horse : Gallop : : ? : ?

The pair $$\text{Horse : Gallop}$$ links an animal with its characteristic mode of movement—horses characteristically gallop.

We must locate the option where the first word is an animal and the second word denotes that animal’s typical manner of movement.

Checking the options one by one
Option A $$\text{Bird : Fly}$$ - birds characteristically fly; so this matches the movement relationship.
Option B $$\text{Lion : Roar}$$ - “roar” is a sound, not a movement; relation is sound, not locomotion.
Option C $$\text{Tiger : Carnivorous}$$ - “carnivorous” describes diet, not movement.
Option D $$\text{Cat : Kitten}$$ - describes parent-offspring, not movement.

Only Option A preserves the same type of relationship (animal ➝ characteristic movement).

Therefore, the correct answer is:
Option A which is: Bird : Fly