Is the classification for an instrument that produces sound by vibrating a string or strings stretched between two points

Which of the following is not a characteristic of bebop? reharmonization and chord substitution common emphasis on improvised solos new repertoire created from jazz standards using new melodies general attitude of restraint, tranquility

How did shawn mendes change the world? (need this for biography homework❤)

Alex thinking about repleacing the word feared at the end of paraghaph 2 with dreaded. why do you think he want to make that change