I need help on this question!

What was the atmosphere like at central high on the first day of integration? a. mild and ordinary b. somber and depressing c. spirited and hopeful d. tense and anxious

Which of the following was used only once, to ratify the 21st amendment (repealing prohibition)? a.three-fourths of both houses of congress. b.three-fourths of the state legislature approved it. c.two-thirds of the state legislature approved it. d.ratifying conventions in three-fourths of the states approve it.

Which events are correlated but do not necessarily have a causal relationship?