如题

问题如下：

Which action is a central bank least likely to take if it wants to encourage businesses and households to borrow for investment and consumption purposes?

选项：

A.Sell long-dated government securities. B.Purchase long-dated government treasuries. C.Purchase mortgage bonds or other securities.

解释：

Such action would tend to constrict the money supply and increase interest rates, all else equal.

中文解析：

在其他条件相同的情况下，这样的行动往往会收缩货币供应，提高利率。