The correct option is C A is correct but R is incorrect
Inhabitants close to busy airports experience health problems basically due to immense noise caused by air planes. Jet planes are one of the major contributors of noise pollution. However, the decibel level is around 150 dB and does not exceed 170 dB. Brief exposure to such extreme noises can cause permanent hearing loss; whereas prolonged exposure to increased noise levels such as from constant traffic, loud music, industrial noise etc. has chronic physiological and psychological effects.