Heavy Rains and Mudslides Cause a River to Change Course,isolating

Multiple Choice

Heavy rains and mudslides cause a river to change course,isolating two groups of lizards from one another.If the groups remain isolated from each other for a long period of time,_____________.

A) both groups will probably become invasive species
B) one group will probably become an endemic species
C) the groups will probably diverge genetically,and speciation may occur
D) both groups will probably go extinct