Matthew has discovered a new species of fish. During the summer months, the male fish separate themselves from the female fish and swim to cooler waters. During one summer, a volcano erupts and the molten rock forms a barrier preventing the male and female fish from reuniting. Which of these BEST describes the long-term outlook for this new species of fish?

AThe species would not be affected by the barrier.

BThe male fish would begin to produce eggs and sperm.

CThe fish would develop legs and walk across the barrier.

DThe fish would become extinct as they would not be able to reproduce.