What is the most likely reason literary critics compare the works of artists and authors who focus on the same subject matter?

A. By identifying the differences between the works, literary critics can make suggestions as to which is more important for students to read or view.
B. By identifying differences between the works, literary critics can determine each author's or artist's unique perspective.
C. By identifying the differences between the works, literary critics can understand the authors' and artists' opinions of each other.
D. By identifying similarities between the works, literary critics can determine which author or artist was the most talented.