What are shared derived characters in the array, and how do they differ from ancestral characters?

a. Shared derived characters are traits that are found in all members of a particular group, while ancestral characters are traits found in the common ancestor of the group
b. Shared derived characters are unique traits that are found in only some members of a particular group, while ancestral characters are traits found in the common ancestor of the group
c. Shared derived characters are traits that are found in the common ancestor of a particular group, while ancestral characters are traits found in all members of the group
d. Shared derived characters are traits that are not found in the common ancestor of a particular group, while ancestral characters are traits found in all members of the group
e. Shared derived characters are traits that have evolved within a particular group, while ancestral characters are traits that have remained unchanged since the common ancestor