What is TRUE about the genre known as hot jazz? Multiple musicians use improvisation at the same time.

Only one instrument at a time is allowed to improvise.

Improvisation is not permitted; the score is unchanged.

The "frontline" instruments are used less than previous styles.

Multiple musicians use improvisation at the same time.

Explanation:

Hot jazz can also be called Dixieland, and it can also be called traditional jazz. It is a subgenre of Jazz, but its differential is the constant improvisation of all musicians and singers, who can even improvise simultaneously, giving a bohemian tone, freedom, fun and diversity to music, different from New Orleans Jazz that it presented a fixed musical structure, where all the musicians followed melodies and compositions strictly established for each one of them.

idk lol i just wanna finish mines

i believe your answer is d)