The word "returns" in Paragraph 3 can be best replaced by"______."

A．Everybody can get rich with some financial assets.
B．The credit risk for treasury bonds is extremely high.
C．Ifs no use trying to know the 'advantages of stocks, bonds and cash.
D．Everybody should realize the importance of distribution of their financial assets.

A．keeping cash is the only way to avoid risks
B．the longer you own a stock, the more you lose
C．the high rate of profit and high rate of risk coexist in stocks
D．the best way to accumulate wealth is by investing in stocks