Alfred Roca and His Colleagues Used DNA Sequencing to Reassess

Alfred Roca and his colleagues used DNA sequencing to reassess the genetic relationships among African elephants. What did they conclude?

A) Genetic variation was uncommon in African elephants.
B) Cladogenesis occurred within African elephants.
C) There was extensive gene flow between forest and savannah elephants.
D) The genetic variation correlates with differences in phenotype that had been previously observed.
E) There was extensive difference in the mitochondrial genome between savannah and forest elephants.