It can be inferred from the passage that people's views on beauty are often ______.

A．The results of economic decisions cannot always be predicted.
B．Minimum wage can not always protect employees.
C．Economic theory can predict the results of economic decisions if other factors are not changing.
D．Economic decisions should not be based on economic theory.

A．cause a shortage of apartments
B．worry those who rent apartments as homes
C．increase the profits of landlords
D．encourage landlords to invest in building apartment