For two years, two samples of fish were taken from a pond. Each year, the second sample was taken six months after the first sample. Make an inference about which fish increased its predicted average population from Year 1 to Year 2.
A. All three types of fish increased their predicted average population.
B. Trout increased its predicted average population.
C. Bass increased its predicted average population.
D. None of the fish increased their predicted average population.