Refer to the Figure Shown

Refer to the figure shown.
Which statement about the numbered points on the figure is true?

A) All of the species beyond point II share the same missing portions of DNA.
B) Species beyond points I and II share the same missing portions of DNA.
C) Only species beyond point III share the missing sequences that render hemoglobin nonfunctional.
D) Species beyond points III and IV have nonfunctional hemoglobin but the missing sequences are different.