From his appearance, we know that Emerson was exhausted by his work.

A．Many young men, who live alone, have increased demand for houses.
B．Many young men need to rent more houses.
C．It is easy to apply for a mortgage for young generation.
D．The number of older people, many of whom live alone, becomes bigger and bigger.

A．By taking photographs for magazines.
B．By marrying a rich man.
C．By subletting the lounge sofa-bed to her brother.
D．By preparing food for photographs for some magazines.