How many people are they taking about in the photograph?

W:What a nice photograph, Alex！Who’s the woman holthng a baby?
M:That’s my mpther and the baby is me.
W:Where was it taken?
M:A litde village in the mountains. My parents used to go there on vacation every summer.
W:And the man who is drinking lemonade?
M:That is my father. And the litde girl playing with the dog is my sister Meg.
W:Do you still go to the village?
M:Unfortunately, no. My parents are retired now, so they are living in Florida. Meg’s married and has two kids of her own.