A student is breeding beta fish to sell. The original population of fish he uses to start the breeding has a mixture of red fish, blue fish and purple fish. Purple are the most desirable fish. If the student uses selective breeding, which statement best describes how the population of fish will change over time? A.
The percent of red and blue fish in the population will increase and the percent of purple fish will decrease over several generations.

B.
The percent of purple fish in the population will increase and the percent of red fish and blue fish will decrease over several generations.

C.
The percent of purple fish and blue fish in the population will increase and the percent of red fish will decrease over several generations.
D.
The percent of red fish in the population will increase and the percent of purple fish and blue fish will decrease over several generations.