请问c选项为什么不对
问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ2016010802000211问题如下If the base currenin a forwarexchange rate quote is trang a forwarscount, whiof the following statements is most accurate?A.The forwarpoints will positive.B.The forwarpercentage will negative.C.The base currenis expecteto appreciate versus the pricurrency.is correct.The base currentrang a forwarscount means th1 unit of the base currencosts less for forwarlivery thfor spot livery; i.e., the forwarexchange rate is less ththe spot exchange rate. The forwarpoints, expresseeither absolute number of points or a percentage, are negative.考点ForwarPremium anscount解析如果基础货币以远期贴水交易，那么远期汇率将低于即期汇率，forwarpoints 和forwarpercentage都为负数，基础货币将贬值。所以只有B正确请问C如何理解？？？
NO.PZ2016010802000211 问题如下 If the base currenin a forwarexchange rate quote is trang a forwarscount, whiof the following statements is most accurate? A.The forwarpoints will positive. B.The forwarpercentage will negative. C.The base currenis expecteto appreciate versus the pricurrency. is correct.The base currentrang a forwarscount means th1 unit of the base currencosts less for forwarlivery thfor spot livery; i.e., the forwarexchange rate is less ththe spot exchange rate. The forwarpoints, expresseeither absolute number of points or a percentage, are negative.考点ForwarPremium anscount解析如果基础货币以远期贴水交易，那么远期汇率将低于即期汇率，forwarpoints 和forwarpercentage都为负数，基础货币将贬值。所以只有B正确 解析中说那样基础货币会贬值。为什么？
NO.PZ2016010802000211 为什么forwarpoints 和forwarpercentage都为负数？
The forwarpercentage will negative. The base currenis expecteto appreciate versus the pricurrency. B is correct. The base currentrang a forwarscount means th1 unit of the base currencosts less for forwarlivery thfor spot livery; i.e., the forwarexchange rate is less ththe spot exchange rate. The forwarpoints, expresseeither absolute number of points or a percentage, are negative. 考点ForwarPremium anscount 解析如果基础货币以远期贴水交易，那么远期汇率将低于即期汇率，forwarpoints 和forwarpercentage都为负数，基础货币将贬值。所以只有B正确请问这里的base currency是指的A/B中的A是吗
老师，钻进死胡同了，我能理解AC是错的，那为什么B是对的
