一道BIBLE上的reasoning。求助解释！！谢谢！！！！

lihaolan

psychologist:the obligation to express gratitude cannot be fulfilled anonymouusly.However much society may have changed over the centuries, human psychology is still driven primarily by personal interaction. thus ,the important social function of positively reinforcing those behaviors that have benificial consequences for others can be served on if the benefactor knows the source of the gratitude.
which one of the following most accurately describes the role played in psychologist's argument by the claim that the obligation to express gratitude cannot be fulfilled anonymously?
A it is an illustration of premise that might support the argument's concluson
B it is used to counter a consideration that might be taken to undermine the argument's conclusion
C it is used to support indirectly a claim that the argument in turn used to support directly the conclusion
D it is used to identify the social benefit with which the argument is concerned
E it is the conclusion that the argument is intended to support。
key E
求助。为什么是结论。文章不是HOWEVER THUS 么。。。具体的内容有什么逻辑支持也没有读懂！！求助解释下！！

dynacraft

however在这里就不是转折了是么。。第一句和第二句有对比转折么。。

-- by 会员 lihaolan (2012/8/21 12:05:20)

However在这里是副词（adverb），However 修饰其后面的much，不是转折的意思。
例如：
However long you go, you are still a baby in Mom's view. （无论你走了多远，始终是妈妈眼里的宝贝）
However difficult it is, determination of being great never changed.（无论多么困难，追求卓越的意志从未动摇）
对比：
I love her, however, that's not sufficient for a marriage. (我爱她，然而那不足以成就婚姻)

玛莎丁丁

however在这里就不是转折了是么。。第一句和第二句有对比转折么。。

-- by 会员 lihaolan (2012/8/21 12:05:20)

这里however指的是不论社会历经几个世纪如何的变化，no matter how的意思，不是转折
与后面那个still照应的

lihaolan

however在这里就不是转折了是么。。第一句和第二句有对比转折么。。

玛莎丁丁

The 1st sentence is the conlusion.

Two premises are used to support it:
(I abbreviated them a little bit so that you see the logic better)
1. human psychology is driven by personal interaction
2. only if the benefactor knows who did it ("the source of the gratitude") could the purpose of reinforcing those deeds be met ("served on")
* Also you're supposed to understand that the benefactor knows who did it means the beneficial expressed the gratitude.

What do you see? the 2nd "premise" actually restates the 1st sentence/ conclusion.
That's why E is correct.

Hope it helps! Let me know if it's still confusing to u.