Since 2004, when storm waters introduced pacific carp to hoffman lake, the lake’s population of smallmouth bass has decreased by nearly one third. in the same time period, the lake’s population of sand trout has decreased by approximately 40%. still, hoffman lake is home to more sand trout than to any other type of fish.
which of the following must be true on the basis of the statements above?
a) in 2004, there were more sand trout than any other type of fish in lake hoffman.
b)at some point there were more sand trout in lake hoffman than smallmouth bass.