A student is revising for relevance in a paragraph about fairness in course registration. Which sentence should be deleted? Sentence 1: A lottery can prevent the fastest internet connections from determining who gets seats. Sentence 2: The school mascot costume is stored near the registration office in summer. Sentence 3: Waitlists should be updated regularly so open spots are offered consistently. Sentence 4: Publishing the process helps students understand how limited seats are assigned.