reproduce faster begin to produce their own food decrease in number increase in number
I gave my students this multiple choice question: As the population of small fish in a lake decreases, the population of large fish that depend on the small fish for food will

Only one answer is correct among these 4 choices:
- reproduce faster
- begin to produce their own food
- decrease in number
- increase in number

Could you tell me which one is correct?

decrease in number