There are many branches to the lineage between early primates and living primates, but this concept relies on one factor,
A) a common ancestor who as yet is unknown.
B) all direct lineages between past and present.
C) no extinctions of any lineages.
D) no one common ancestor, but a large number of them.

Question

Quizplus · Accepted Answer

The concept of lineage between early primates and living primates relies on the idea of a common ancestor from which different branches evolved, even if this ancestor has not yet been identified.

There Are Many Branches to the Lineage Between Early Primates