问题详情

The main reason that an increase of price doesn’t bring about an increase in mortgage is that
A.the residents of Hong Kong very rich．
B.the mainland buyers do not necessarily loan money．
C.the interest rates of the banks are not high．
D.the percentage of mainland borrowers in Hong Kong has declined over the past three years．请帮忙给出正确答案和分析，谢谢！