Presents two alternatives or choices; 'or', 'either...or'.
Verb-casual + ？それとも + Verb-casual + ？, い-Adjective + ？それとも + い-Adjective + ？, な-Adjective + だ？それとも + な-Adjective + だ？, Noun + だ？それとも + Noun + だ？
The ～？それとも～？ grammar point is used to present two alternatives or choices in a single sentence. It is similar to 'or' or 'either...or' in English. It can be used with verbs, い-adjectives, な-adjectives, and nouns.