GWD-12-12，大家帮忙看看我的思路问题出在哪里？谢谢。

mindfree

First of all, C counters what the argument is trying to prove. If C is correct, the insurance company will be justified to charge more on insurance and still would not earn a bigger profit.

C would be the correct answer if it says ...are NOT more likely...

Second, you should know that assumption is a required condition, not a sufficient condition for the argument.

One example of sufficient condition: Wang took a UA flight from Beijing to Chicago yesterday. So he is in the US now. If we say Wang did not take a UA flight, Wang might still be in the US now because he could have taken a Northwest flight.

This example help us clarify one more kind of assumption question. For example: Wang is in the US now. What is the assumption? The asnwer is not that Wang took a UA flight because that is just one sufficient condition. It does not have to be true.

mindfree

Also, you mentioned that repair cost is not related to insurance. They are apparantly related.