1) I've chosen photor number 2.

2) In the picture I can see a retired man who is holding a cat. The man is wearing glasses and smiling happily. The white, fluffy cat looks a bit scared, but it must be that he is glad to be cuddled by his owner.

3) It seems to me that they are both very happy to have each other. Pets give us a lot of love, and we do the same for them.