An illustration shows a left arrow labeled, “going back in time” near the arrowhead on the left, and “present” near the tail on the right. A timeline above this arrow has point A on the left labeled, “Species A is the ancestor of species B.” Point B to the right of A is labeled, “Species B is the common ancestor of species C and D.” The timeline after B divides into two branches as C and D. These points are together labeled, “Species C and D are the descendants of species B.”
Based on the figure, imagine two new species, E and F, descended from species C, and two new species, G and H, descended from species D. The most recent common ancestor of species E, F, G, and H is species