Use the following figure to answer the question. Describe groups labeled A and B.

A) A is the most recent species to evolve on Earth whereas B is an ancestor of group "A"
B) A is the most recent species to evolve on Earth whereas B is the last common ancestor of Archaea and Eukarya
C) A is the common ancestor of all life whereas B is the common ancestor of Bacteria and Archaea
D) A is the common ancestor of all life whereas B is the last common ancestor of Archaea and Eukarya