It was John’s quick action and knowledge of first aid that saved Ms Slades’s life. He immediately asked __1__ for bandages, but when nobody could __2__, his father got some tea towels and tape from their house. John used these to treat __3__ to Ms Slade’s hands. He slowed the bleeding by __4__ until the police and __5__ arrived.

以信用方式动员和筹集资金的动力在于( )。

A．节约资金

B．利息和利率

C．利率的杠杆作用

D．财务成本