According to the text, why does money stand for love

A．businessmen are as knowledgeable as scientists because they know the psychology of people's spending habits.
B．the advertising and sales methods developed by businessmen influence the psychology of spending habits.
C．businessmen take people's various needs and basic values into consideration, because they are considerate.
D．businessmen can earn more money by taking advantage of the psychology of people's spend ing habits.

A．the length of the courses in distance education is shorter than that of college courses.
B．distance education only provides courses of low levels.
C．students need not spend a lot of money on getting a diploma in distance education.
D．students can enjoy a great variety of subjects provided by distance education.