Answer:
B. Specialists can breed animals at zoos to help increase their population.
Step-by-step explanation:
For the claim that "Zoos help to protect endangered animals, so they are necessary for animal conservation" to be true, the statement that "Specialists can breed animals at zoos to help increase their population" will be the best evidence to support this claim. It is the only statement among the 4 options provided that positively supports the claim. Except option B, the others are all talking about the probable demerits of placing engendered animals in zoos.