Much_______(使研究人员感到宽慰)，the outcome of the experiment was exactly the same as they had expected.

A. To help increase his visibility.
B. To make his restaurants widely known.
C. To avoid recognition in the streets.
D. To display his special taste in fashion.

A. Zoos should not keep animals which are unpopular among visitors.
B. Cross-bred animals should be killed for the sake of pure-bred ones.
C. It is unreasonable to kill animals even if there are too many of them.
D. Wealthy people’s buying and running zoos help animals survive better.