Answer:
One reason author includes information about "Sense and Sensibility" and "Twilight" is Option C: to show that modern authors use semicolons
less frequently than classic authors.
Step-by-step explanation:
A semicolon is like a link between two independent clauses of a sentence. These two clauses are closely related in thought.
Author includes information about "Sense and Sensibility" and "Twilight" as he wants to emphasize that there are differences in the writings of modern author and a classical one.
He says that classical authors use semicolons and other punctuation marks differently. He also says that the classical authors rely more on punctuation.
He is not illustrating that authors struggle with semicolons (Option D) or modern authors are less sophisticated (Option B). Neither he is saying how authors consider using semicolons (Option A).