The term which best describes species C relative to species A is Sister
species. This is as a result of them sharing largest number of derived traits.
<h3>What is Ingroup?</h3>
Ingroup is defined as the group in which organism belongs to. We were
told that A and C are ingroup species.
Species A sharing the largest number of derived traits with species C
means that they have similar traits and a common parent which is a
characteristic of sister species.
Read more about Sister species here brainly.com/question/15808982