The process of collective bargaining in U.S. labor relations has the goal of producing a legally binding, written contract that specifies wages and many other terms of employment.

An important limit of molecular phylogenetics is that

A) DNA sequences hold little evolutionary relevant information.
B) they can only compare living and recently extinct species.
C) only closely related species can be compared with molecular phylogenies.
D) they can only compare species that went extinct more than 100,000 years ago.