有这样一道选择题，女儿回家看见妈妈正准备去拿放在高处的东西：
女儿：妈妈，我来拿吧。 妈妈： A：不用了，谢谢！   B：好，谢谢！  C：好吧，你来拿。
对话非常简单，语言本身并没有障碍，可在选择答案时，中国人大多数选择C，而外国人大多数选择B。请问： 

    In northern Scotland there is a long deep lake called Loch Ness.  More than 200 meters deep, it is the largest lake in the UK.  People  say  a  big monster (怪兽)  lives in its dark, cold waters. It weighs more than 1,000 kilos and is at least ten meters long. Some people say it has a head like a horse. Others say it looks like a snake. Many people travel to Loch Ness to look for this strange monster, but only a few people have seen it. At least, they say they have seen it.

    The Loch Ness Monster is a famous legend (传说). The first story about a monster in Loch Ness was told over 500 years ago, but the legend of the monster spread widely only in the twentieth century. In 1933, a husband and wife reported that they saw a big monster in Loch Ness. Several people have taken photos, but at least one of them was a hoax (骗局). During the 1960s, a team was formed to look for the monster. They took many photos and made movies, but they were never able to find a monster.

    There is no real fact that a monster lives in Loch Ness, but there is also no fact that one doesn't live. One thing is true about Loch Ness: there are a lot of tourists there.

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