What is the woman looking for?

W: Hello, This is Sue Kim calling. I am calling about the apartment for rent advertised in today’s paper. Is it still available?
M: Sorry, the one that is on the 3rd floor has already been rented out, but the first floor apartment is still available. It’s $650 a month including utilities and there’s a $400 security deposit as well.
W: Are pets allowed? I have a small cat and I really want to take him.
M: Yes, but only small pets.