Trout Are Introduced into a Stream

Multiple Choice

Trout are introduced into a stream. Trout is a predator species and therefore has an influence on the population size of other fish. The following figure shows how the trout and other fish populations vary over time. The progress of time is shown by the direction of the arrow. What happens to the size of the trout population at point P?

A) It will be stable.
B) It will be at a maximum.
C) It will be at a minimum.
D) Nothing can be determined.