帮忙解答一道题

The poeple who are least likely to be audited by the IR this year are those who were foun ad to have made no mistakes in filling their returns during that audit.

of the folowing people, who is MOST likely to be audited by IR?

A. a person who was audited in 1986 but was not found to have made any mistakes in filling his return

B. a person who was audited in 1986 and whose lawyer corrected several mistakes in the tax return prior to the filling deadline.

C. a person whose spouse was convinced of tax fraud in 1987, who was then audited and found to have made no mistakes.

D. a person who was last audited in 1984, and had no mistakes uncovered by the IR during that audit.

E. A person who was audited in each of the past year, but was found to have made no mistakes in any of the filling.

我一开始选的B，结果不对，可能我想的太简单了。高人指点一下，我的逻辑真的是最弱项

还有两道题，刚做了，不明白：

The increased concentration salt in the bay, which is the result of drought and high temperature, will cause many fish to die. Shrimp, however, can tolerate high salt levels; the shrimp industry will not, therefore, be hurt by the increased concentration of salt.

Which of the folowing if true will weaken the arg above?

A. some fish will migrate to areas that have lower concentration of salt

B. Lack of rainfall for extended periods of time cannot srvive in such salty waters.

C. The organisms on which young shrimp feed cannot survive in such salty water.

D. Increased water temperature often causes shrimp to multiply more quickly.

E. Shrimp are more abundant in area of the bay that are sparesely populated by fish.

answer is C. but I chose D. I cannot understant why C is a weaken. Is the conclusion is the part behind "therefore"?

another one:

Manufactue of workstation for computer-aid design seeks to increase sales to its most important corporation customers. Its stratery is to publish very low list prices for workstations in order to generate interest among the buyers for those corporation.

Which will tend to cause the manufacture's statery to fail?

A. The proposed list price would seem low to a typical buyer for the manufacture's most important corporate customers.

B. The capability of workstations suitable for given jobs are not significantly different among various manufactures.

C. The manufacture's most important corporate customers employ as buyers persons who are very knowlegeable about prices for workstations for customer-aid design.

D. Customers differ significantly in the percentage of resources they can devote to computer workstation

E. Buyers for corporations that purchase workstation for computer-aid design recieve bonuses for negotiating large discounts from the list prices.

answer is E, but I chose C. to increase the sale by decreasing the list price to attract buyer. I think the sale does not mean the profit, then give some discounts will nor affect the sale. In C, if buyer know the actual price, they may disconfident about this company. 不明白阿不明白，说实在的，C 我也不是很赞同，但是D也不是很好。