Divergence Time Estimates Based on Molecular Clocks Are

Multiple Choice

Divergence time estimates based on molecular clocks are

A) likely to be correct plus or minus a few decades.
B) more reliable than divergence dates that are based on analysis of the fossil record.
C) best interpreted with caution,since they depend on assumptions that are difficult to test.
D) usually worthless since we cannot directly observe divergence times unless we invent a time machine.