A bird watcher takes a trip of North America and wants to document the different types of birds he sees. He notices that
Juncos across North America look similar, but have noticeable differences. He wonders why they are so different and so
similar at the same time. Could they still be related?? His curiosity gets the best of him and he calls his scientist friend with
this information. The scientists tells him about mitochondrial DNA. Which of the following would be a great piece of
evidence to support the claim that all these Juncos have the same common ancestor?

A. Data showing mitochondrial DNA samples of Junco’s in various locations of North America

B. Data showing mitochondrial DNA samples of Juncos in only one area

C. Data showing mitochondrial DNA samples of one Junco

D. Data showing mitochondrial DNA samples of different species of birds like Juncos and parrots

NEED HELP ASAP PLEASE