项目的间接效益和间接费用通常要考察的内容包括（）。

A．环境影响

B．技术扩散效果

C．乘数效果

D．价格影响

E．技术因素

A family made a down payment of $75 and borrowed the balance on a set of encyclopedias that cost $400. The balance with interest was paid in 23 monthly payments of $16 each and a final payment of $9.
The amount of interest paid was what percent of the amount borrowed ？（）

A．6%

B．12%

C．14%

D．16%

E．20%