What is a castrato?

a. a woodwind instrument that developed during the early Renaissance that sounds like a hybrid of a clarinet and
trumpet
b. a popular term for the violin
c. a high, soprano-like voice produced by adult male singers when they sing in head voice and not in full chest
voice
d. a celebrated female opera singer; a prima donna
e. a boy or adult singer who had been castrated to keep his voice in the soprano register

ANSWER: e