Sentence 1: There are two primary types of cells; eukaryotic cells and prokaryotic cells.
Which of the following changes should be made to CORRECT sentence 1?

A colon should be used to introduce a list, not a semicolon. A semicolon is used: (1) to join two or more independent clauses; (2) with transitional phrases and conjunctive adverbs; and (3) to separate groups that contain commas. The other answer options are not options that would make the sentence grammatically correct.