What are some words that might be used to described the feeling and tone of the cool era?

(i think my answer is a, am i correct? ) a pentagonal traffic sign is a sign. a. school crossing b. parking c. wrong way d. yield

The earliest type of phonograph was recorded sound on a a. tape. b. metal cylinder. c. wax cylinder. d. vinyl disk.

Sorry about the calculator and me asap me asap because for real like some no one answers question one for me so that's why i'm posting them over to that way someone can at least answer number two or one for me if you do you so much if you do it would be a complete big blessing to me