Final answer:
Grunge represented the loud guitar sounds. True.
Step-by-step explanation:
The statement that grunge represented the loud guitar sounds is true. Grunge was a music genre that emerged in the Seattle area in the late 1980s and early 1990s. It was characterized by loud and distorted guitar sounds, often achieved by detuning the guitars to get a heavier sound. Bands like Nirvana, Pearl Jam, and Soundgarden were prominent in the grunge movement and exemplified the use of loud guitar sounds in their music.