Read the following article and answer the question. Article: Most young people like to go to rock concerts these days. They like the loud and exciting sound of the music and they enjoy the excitement of a big concert. Rock stars usually have a different style. Their music is exciting and different, and the way they dance and dress makes them popular with young people. The words of rock songs are usually quite simple, but the music itself is complex . But some rock stars have problems after they become famous. They don't know what to do when they suddenly succeed, and often they start to drink or to take drugs . Then their health becomes bad. Some like Elvis Presley , died very young because of drugs. Question: _ simple. Answer:

pick from the following.
I. The words of rock songs are
II. Rock stars are
III. The styles of rock stars are
IV. Rock music is
Answer:
I.