I think it’s A, it’s probably not B
D. gerund phrase as a direct object
Gerund is one of three kinds of verbals. Like all verbals, gerunds are nouns derived from verbs. Gerunds end in -ing. In the sentence, "leading" is the gerund. This gerund phrase is used as the direct object.
Answer:
because if there is no setting the story will not have the same flow like a regular story
Explanation: