This marsupial was once found across Australia, but sea levels rose, isolating the Tasmanian population, while the Australian population went extinct. What would be an outcome of genetic isolation that is likely to have impacted the spread of DFTD? A) Reduced territory puts diseased individuals in greater contact with non-diseased ones. B) Inbreeding results in less variation in facial features so the cancer is generally fatal. C) Genetic isolation has made it difficult for scientists to develop a vaccine against DFTD. D) The lack of genetic variation in the immune system of Tasmanian Devils minimizes resistance to the disease.