Answer:
It's B.
Explanation:
B. When there was more food to eat in 1989, the number of wolves in a pack increased.
If there's less prey, then there will also be less predators. If there's more, then more predators.
Because, as seen in the graph, it's the only thing that makes sense.
<em>(Then again, it looked kinda blurry to me.)</em>
Still hope this helps though.
