求教 consideration和assumption有什么区别啊？

比如这题：

GWD1-Q3:

A product that represents a clear technological advance over competing products can generally command a high price.  Because technological advances tend to be quickly surpassed and companies want to make large profits while they still can, many companies charge the greatest price the market will bear when they have such a product.  But large profits on the mew product will give competitors a strong incentive to quickly match the mew product’s capabilities.  Consequently, the strategy to maximize overall profit from a new product is to charge less than the greatest possible price.

In the argument above, the two portions in boldface play which of the following roles?

1. The first is an assumption that forms the basis for a course of action that the argument criticizes; the second presents the course of action endorsed by the argument.

2. The first is a consideration raised to explain the appeal of a certain strategy; the second is a consideration raised to call into question the wisdom of adopting that strategy.

3. The first is an assumption that has been used to justify a certain strategy; the second is a consideration that is used to cast doubt on that assumption.

4. The first is a consideration raised in support of a strategy the argument endorses; the second presents grounds in support of that consideration.

5. The first is a consideration raised to show that adopting a certain strategy is unlikely to achieve the intended effect; the second is presented to explain the appeal of that strategy.

我选的C 但是答案是B

有哪位高手能指点一下 consideration和 assumption到底如何区别？

谢谢了！

A product that represents a clear technological advance over competing products can generally command a high price.  Because technological advances tend to be quickly surpassed and companies want to make large profits while they still can, many companies charge the greatest price the market will bear when they have such a product.  But large profits on the mew product will give competitors a strong incentive to quickly match the mew product’s capabilities.  Consequently, the strategy to maximize overall profit from a new product is to charge less than the greatest possible price.

In the argument above, the two portions in boldface play which of the following roles?

1. The first is an assumption that forms the basis for a course of action that the argument criticizes; the second presents the course of action endorsed by the argument.

2. The first is a consideration raised to explain the appeal of a certain strategy; the second is a consideration raised to call into question the wisdom of adopting that strategy.

3. The first is an assumption that has been used to justify a certain strategy; the second is a consideration that is used to cast doubt on that assumption.

4. The first is a consideration raised in support of a strategy the argument endorses; the second presents grounds in support of that consideration.

5. The first is a consideration raised to show that adopting a certain strategy is unlikely to achieve the intended effect; the second is presented to explain the appeal of that strategy.

consideration=原因，缘由，论据是也

具体意思不要看了

中间有个BUT，最后有个总结陈词之类的标志

看选项：

A认为两句之间没转折，干掉

B认为两句之间有转折，留着

C同B

D同A

E同A

BC开比

第一句明显在BECAUSE之后，当然选B

此题做完