看不懂，请问这道题及各选项怎么理解？    问一道题：NO.PZ2015122802000009 [ CFA I ]

NO.PZ2015122802000009 When investors sell the shares of open-enfun they creceive a scount or a premium to the funs net asset value. When selling shares, investors in open-enfunsell the shares bato the funwhereinvestors in a closeenfunsell the shares to others in the seconry market. C is correct. When investors want to sell their shares, investors of open-enfunsell the shares bato the funwhereinvestors of a closeenfunsell the shares to others in the seconry market. Closeenfun are available to new investors but they must purchase shares in the funin the seconry market. The shares of a closeenfuntra a premium or scount to net asset value. 考点金融资产的分类 这道题就是问下列哪个关于开放式基金和封闭式基金的区别说法正确的是。 A封闭式基金的封闭期开始后其他投资者就买不到了。错误。封闭式基金大门在锁定期时，其份额可以在二级市场上转让，所以并不是“unavailable to new investors”. B当投资者想赎回开放式基金份额时可以以折价或溢价来交易。说反了，B说的是封闭式基金的特点，只有封闭式基金才能在二级市场买卖基金份额（以折价或溢价买卖）。而投资者申购赎回开放式基金都是和基金公司进行的。 C如果投资者不想再持有基金（赎回），开放式基金的投资者需要把它卖回给基金公司，而封闭式基金只能卖给其他投资者。正确。 关于封闭式基金请看如下原版书的原文 Onissue investors cannot sell their shares of the funbato the funmanng remption. Instea investors in closeenfun must sell their shares to other investors in the seconry market. Closeenfun malso tra a scount or a premium to net asset value when investors believe ththe portfolio securities are overvalueor unrvalue 如题。。。。。。。。

这道题目我做对了，但是我不明白为什么B错，When investors sell the shares of open-enfun they creceive a scount or a premium to the funs net asset value.。尽管我们知道是不能在二级市场交易，但是，申购和赎回所产生的 scount or a premium难道不能获得吗？

close-enfun在募集结束后 不就不对新投资人开放了吗？ A为什么错了呢？

麻烦问一下B为什么是错的呢？