In recent efforts at maintaining a healthy zoo population, ...

[mcmcdaniel]

In recent efforts at maintaining a healthy zoo population, species conservation has
  become an important goal.
 
  A) efforts, maintaining
  B) conservation, has become
  C) conservation, has
  D) population, has

Question 2

Adult animals in zoos have too few mates for breeding.
 
  A) Adult, have
  B) animals, have
  C) zoos, have
  D) mates, breeding

[TheDev123]

Answer to Question 1

B

Answer to Question 2

B

[mcmcdaniel]

Thanks for the timely response, appreciate it

[Missbam101]

YES! Correct, THANKS for helping me on my review