Final answer:
The climax of the story 'Stray' is the scene where Dad takes the dog and drives away to the pound, as this is when the narrative tension peaks and the outcome of the conflict is most uncertain.
Step-by-step explanation:
The climax of a story is the most intense, exciting, or important point in the narrative where the main conflict reaches its peak. In the case of the story Stray, it can be argued that the climax is the emotionally charged scene where Dad takes the dog and drives away to the pound. This is the moment of greatest tension and uncertainty, where the protagonist's future hangs in the balance. It's at this climactic moment that the readers feel the highest level of emotional involvement and are most eager to find out what will happen next.