The correct answer is a. grunge
It is a form of alternative rock that started in Seattle in the 1990s. Techno is older while alternative country rose in popularity in the 2000s.
Answer:
both a and b
Explanation:
"Baroque music expanded the size, range, and complexity of <u>instrumental </u>performance, and also established [vocal:] opera, cantata, oratorio, concerto, and sonata as musical genres."