[求助] 2个不明白的逻辑题

11.   “If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.

“So all that is needed to save the koala is to stop deforestation,” said the politician.

Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?

(A) Deforestation continues and the koala becomes extinct.

(B) Deforestation is stopped and the koala becomes extinct.

(C) Reforestation begins and the koala survives.

(D) Deforestation is slowed and the koala survives.（B）

(E) Deforestation is slowed and the koala approaches extinction.

为什么不是A呢??

17.   With Proposition 13, if you bought your house 11 years ago for $75,000, your property tax would be approximately $914 a year (1 percent of $75,000 increased by 2 percent each year for 11 years); and if your neighbor bought an identical house next door to you for $200,000 this year, his tax would be $2,000 (1 percent of $200,000). Without Proposition 13, both you and your neighbor would pay $6,000 a year in property taxes (3 percent of $200,000).

Which of the following is the conclusion for which the author most likely is arguing in the passage above?

(A) Proposition 13 is unconstitutional because it imposes an unequal tax on properties of equal value.

(B) If Proposition 13 is repealed, every homeowner is likely to experience a substantial increase in property taxes.

(C) By preventing inflation from driving up property values, Proposition 13 has saved homeowners thousands of dollars in property taxes.

(D) If Proposition 13 is not repealed, identical properties will continue to be taxed at different rates.（B）

(E) Proposition 13 has benefited some homeowners more than others.

整个题偶不是很明白,见笑了,谢谢大家

11:biologist：forest continues to disappear -->the koala will approach extinction

politician：stop deforestation-->save the koala

B刚好和biologist一致和politician不一致。A没有和politician不一致。