The correct option is A Both A and R are correct and R explains A
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. The decibel level when planes are taking off is above 150 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.