Siddhartha saved up money from his summer job to buy a powerful home theater system. When shopping for the best buy in a home theater system the sales representative informs Siddhartha that the more expensive models are worth the money because they ____.

A) amplify sound up to 160 dB
B) boost frequencies below 80 Hz
C) buffer sounds that reach 60 dB
D) filter out frequencies below 10000 Hz

ANSWER:

B) boost frequencies below 80 Hz