Which of the Following Is NOT a Contributing Factor in the Current

Multiple Choice

Which of the following is NOT a contributing factor in the current disagreements over how to classify Middle Pleistocene hominins?

A) There are very few fossils of Middle Pleistocene hominins, and no two appear to be from the same species.
B) The time scale of the Middle Pleistocene fossil record is very short, so evolutionary changes may be more subtle than for earlier time periods for which there is less disagreement.
C) Different anthropologists have different ideas about what processes shape human evolution during this period.
D) Regardless of which model is correct, the hominins were distributed over a huge area and may have resided in diverse ecological niches, with changing levels of interaction and isolation among them.