Which is NOT mentioned to determine the reliability of a house-sitter?

M: Hi, I heard you’re looking for a different apartment.
W: Yeah, the place I’m in now is a real dump.
M: It was OK when I was there.
W: Oh. (5)The steam generator keeps breaking and when it does, we lose the heat for several days at the time.
M: Why doesn’t the owner replace it?
W: Well, she said it’s cheaper to keep fixing it. She is a nice enough person, just sort of stingy in any case, I’m sick of being cold.
M: Can you get your deposit back if you move?
W: (6)If I give two-month notice, I can get the whole thing back.
M: So what kind of place are you looking for?
W: I think I’ll try to get into one of those high rises near the university. There’s nothing really special but at least they are new and functional.
M: I heard those buildings are pretty noisy. The walls are thin and you can hear everything going on in the other apartment.
W: Oh, (7) that will never do. I need some place quiet to finish my thesis. I guess I’ll have to look at some more ads. Maybe new isn’t necessarily better.
M: Don’t worry. You’ll find one soon.