Use the story to answer the question.

How can readers tell Cora is a complex character?

Her family is the focus of the plot.
Her family is the focus of the plot.

Her actions drive the plot forward by causing the main story problem.
Her actions drive the plot forward by causing the main story problem.

She has the most to lose if the story problem is not solved.
She has the most to lose if the story problem is not solved.

She has more dialogue than any other character in the story.