Explanation:
I have already read dictionary entry
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This paragraph lacks sentence variety because of verb tense, lack of pronouns, and lack of transitions words. The writer could have different tenses in the sentences to add variety to the paragraph and to create a timeline. Moreover, the use of personal pronouns to substitute the word Cory could have change the sentences. Finally, transition word could have add variety and cohesion to the paragraph.
C is the complex sentence because it contains the word while and an independent and dependent clause! :)
