Which Statement About the Molecular Clock Is True

Multiple Choice

Which statement about the molecular clock is true?

A) It requires monophyletic taxa.
B) It requires calibration with independent data,such as from the fossil record.
C) It requires binomial nomenclature.
D) It states that all genes evolve at the same rate.
E) It can only be used to date very ancient events (more than about a million years ago) .