During the Nineteenth Century, the Sparks of Interest in Biological

During the nineteenth century, the sparks of interest in biological change over time were fanned into flames by the:

A) discovery of Neandertal fossils in the 1800s.
B) publication of Charles Darwin's On the Origin of Species .
C) discovery of Australopithecus afarensis in the late 1800s.
D) discovery of the Americas.
E) witch craze period.