As a Result of Harvesting a Higher Proportion of Older

As a result of harvesting a higher proportion of older and larger cod and other fish species for food,

A) the number of fish in these populations has increased dramatically.
B) the age and size of fish reaching sexual maturity have decreased.
C) many new species of predators have evolved in these regions.
D) the affected fish species have stopped reproducing.
E) many of the fish in these populations have started to reproduce asexually.