I read the Spider-Man comic book to compare the movie plot with the
original story written by Stan Lee.
A. The infinitive to compare functions as an adjective that describes
the movie plot
B. The infinitive written by functions as a prepositional phrase
describing Stan Lee.
C. The infinitive written by functions as a verb giving action to Stan
Lee.
D. The infinitive to compare functions as an adverb that modifies the
verb read.