The film is based . . . . . . . . the novel by Boris Pasternak. A. for B. in C. on D. by

The correct answer is C. on.

The preposition “on” is used to indicate the

source or origin of something. In this case, the film is based on the novel by Boris Pasternak. This means that the film is a retelling of the story in the novel.

The other options are incorrect because they do not accurately describe the relationship between the film and the novel.

• The preposition “for” is used to indicate the purpose of something. In this case, the film is not made for the novel.
• The preposition “in” is used to indicate a location. In this case, the film is not set in the novel.
• The preposition “by” is used to indicate the author of something. In this case, the film is not written by Boris Pasternak.