Which type of music is written for and performed by a small ensemble? a. symphony b. chamber c. piano sonata d. opera

I think it is

B.) Chamber

Not 100% sure but
Hope It Helps

A musical ensemble is a musical group of people or instruments that work together to preform music.

A. Symphony- INCORRECT is a large ensemble of instruments (ex: the symphony orchestra)

B. Chamber- CORRECT Chamber music is classical music written for a small musical group or ensemble. 

C. Piano Sonata- INCORRECT- music composed for a single piano to play. (this is incorrect because one instrument is not an ensemble at all because it is too few in instruments/people)

D. Opera- INCORRECT is only an ensemble if 3 or more opera singers sing together at the same time. This music is not only written for small ensembles though, it also includes duets and solos.

Amusical im pretty sure

Ihave no idea what are some of the examples