单项选择题

Questions 14 ~ 16 are based on the following dialogue. You now have 15 seconds to rend Questions 14 ~ 16.
What’s the biggest mistake people make

A.They do not think $10 is a large sum of money.
B.They sacrifice movie, beer for bank deposit.
C.They seldom have fixed deposit.
D.They tend to live from paycheck to paycheck.