问题如下图：
选项：
A. 
B. 
C. 
解释：
增量现金流为什么考虑机会成本
NO.PZ2016021705000018 interest costs. opportunity costs. B is correct. Costs to finanthe projeare taken into account when the cash flows are scountethe appropriate cost of capital; inclung interest costs in the cash flows woulresult in uble-counting the cost of bt.做capitbueting时要考虑外部性，但计算NPV的公式中，是如何体现外部性影响的呢？不是很懂
NO.PZ2016021705000018 incrementcash flows是什么意思？这道题没搞明白在考什么，谢谢！
interest costs. opportunity costs. is correct. Costs to finanthe projeare taken into account when the cash flows are scountethe appropriate cost of capital; inclung interest costs in the cash flows woulresult in uble-counting the cost of bt. 老师上课说ingore interest cost是错的，跟这里的not inclu是不是有矛盾？
buet包含利息支出吗？
