The author believes that in face of the challenge
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The author believes that,in face of the challenge from animal rights advocates,scientists should________.
A.communicate more with the public
B.employ hi-tech means in research
C.feel no shame for their cause
D.strive to develop new cures
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答案：A
根据关键词“challenge from animal rights advocates”以及“scientists should”, 可以在最后两段中找出作者向科学家们提出的建议都有助于他们与公众更好的交流。很明显选项A合理，选项B、C、D在文中没有提到，不正确。