Difficult CR questions - please help!

Passage 1:
In the coming century, we will decide, by default of design, how much humanity will tolerate their species and thus decide the future of biodiversity. {The [default scenario] will surely include ever more landscapes dominated by pests and weeds, the global extinction of more large vertebrates, and a continuing struggle to slow the loss of biodiversity.} While sound science can help mitigate the risks of Pleistocene rewinding, the potential for unexpected consequences will worry many conservationists.

  1. The author of Passage 1 characterizes the "default scenario" in lines 31-35 as A. creative B. inevitable C. tolerable D. unlikely E. undesirable I put B because the author says "surely include...", but the answer is E. How is "undesirable" supported by the passage?

Passage 1:
It is also a bold attempt to preserve the evolutionary potential of endangered African and Asian animals. In doing so, we hope to transform conservation biology, which is currently too easily characterized as a doom-and-gloom discipline because we merely expose and try to slow the rate of biodiversity loss. This characterization may discourage people from taking an interest in conservation. Pleistocene rewilding represents an exciting move away from managing extinction and toward restoring ecological and evolutionary processes by using the past as a guide.
Passage 2:
If financial and physical resources were available on this scale, they would be better spent on developing new ways to manage and conserve existing populations of African, Asian, and North American wildlife in their native habitats; on conducting ecological, behavioral, and demographic studies of these organisms in the environments in which they evolved; and on educating each continent’s inhabitants about the wonders of their own dwindling flora and fauna.

  1. The author of Passage 1 would most like characterize the ideas in lines 93-101, Passage 2 ("If financial...fauna"), as A. wasteful B. undisciplined C. prudent D. inadequate E. ambitious I put C because the author says "bold attempted" and "exciting move". The right answer is D, so how is that right?

Thanks guys!

Read this part. the potential for unexpected consequences will worry many conservationists. He clearly states about the consequences so undesirable is the answer.

For #16 (B) can’t work because the author is actively arguing for an alternative scenario–that means the “default scenario” by definition isn’t “inevitable.”

The ideas in passage 2 involve “developing new ways to manage and conserve existing populations,” but the author in passage 1 seems really against managing the rate of loss of existent populations and wants to actually RESTORE that biodiversity. So those passage 2 ideas are “inadequate” since they aren’t “restoring ecological and evolutionary processes,” but are aimed at merely conserving what isn’t extinct yet.

Thanks guys!