After His Return to England, Darwin Pondered Which of the Following

Question

After his return to England, Darwin pondered which of the following questions most heavily?
A) What could explain the great numbers and variety of species?
B) Does the fossil evidence support uniformitarianism?
C) Are the extinct and living armadillos the same species?
D) Did Galápagos mockinbirds have a common mainland ancestor?
E) Will natural selection work in England?

Accepted Answer

Darwin was most heavily focused on understanding the great numbers and variety of species, which led to his theory of evolution by natural selection.