Cladogram shows that Osteichthyes should be under group A. Going back to their characteristics, they’re a group of fish that have the derived characteristics of jaws and true bones. So, moving backwards from group A these derived characteristics are clearly traceable, wherein each line is showing a relationship/connection.
Im pretty sure it is C because all living things consist of at least one or more cells
With its potential to eliminate and prevent hereditary diseases such as cystic fibrosis<span> and </span>hemophilia<span> and its use as a possible cure for </span>heart disease<span>, </span>AIDS, and cancer<span>, gene therapy is a potential medical miracle-worker.</span>