Final answer:
Elsa’s young mother character and Mark’s sea monster are both central characters in their stories, serving as the protagonist and antagonist, respectively. Option b
Step-by-step explanation:
The common element between Elsa’s young mother character and Mark’s sea monster character is that they are both likely central characters in their respective stories. A central character plays a major role, being either the protagonist, whom the story is about, or the antagonist, who opposes the protagonist.
While Elsa’s character discovers magical skills and presumably uses them to face challenges or undergo transformation, which is typical of a protagonist, Mark’s sea monster character is a powerful adversary that the sailor must overcome, fitting the role of an antagonist. Both characters are integral to their stories' conflicts and plot development. Option b