单项选择题

听力原文：W: The house I rent is very large and comfortable. It has all modern facilities, such as hot water supply, central heating. But the landlord wanted to raise my rent.
M: Did you ask him why?
W: He said it's because of inflation.
M: If I were you, I would talk to the housing authorities.
Why does the landlord want to raise rent?
A．Because the prices are rising quickly.
B．Because the house is very large.
C．Because he is short of money.
D．Because tile house has modem facilities.