Which statement is true with regard to twentieth-century music?

a) gregorian chants were popular.
b) literature and theater blossomed along with music.
c) rock festivals were prevalent.
d) music usually followed a poem.

Rock festivals were prevalent.

Explanation:

In twentieth-century music, there were a lot of genres, such as blues, rock and roll, jazz, punk, hard rock, heavy metal, electronic music, disco, glam rock... All of them have their public and have influenced not only on music, but on art, design of clothes, and some of the songs sing about historical events and war. With the rock music came rock festival. One of legendary is Woodstock, held in 1969. There is information that there were nearly 500 000 people. That was legendary with a lot of musicians. One of the grates moments in rock history was performing Bohemian Rhapsody, in Montreal, by Fredy Mercury. Now there are many festivals worldwide.

C). Rock festivals were prevalent.

Explanation:

The statement that is true regarding twentieth-century music is displayed through option C as rock music was quite prevalent during the period. Twentieth-century had a variety of music but rock music dominated the period. Now more people had access to music. The development of multi-track recordings led to developing rock mixes and fusion that drove the audience crazy. The introduction of new electrical instruments added bling to the rock festivals. Thus, option C is the correct answer.