Read the following information carefully and answer the question that follows. You must assume everything in the statement to be true and decide which of the conclusion/s logically follow/s.

With active populations, road traffic, industry and construction, cities are expectedly noisy places. Noise is a leading source of dissatisfaction for city residents. Urban noise affects the quality of lives of people residing there. It also causes serious and long-term harm to health. Noise disturbs sleep which results in stress, fatigue and changes in body's chemical balances. Noise interferes with certain cognitive functions such as attention, concentration and memory.

Which of the following can be concluded from the given information?

A. The main cause of noise pollution is the people remaining active throughout the day and they are able to pay attention to their tasks for more duration.

B. The noise pollution is evident only in those urban areas where industries are located and people are not sleeping properly due to long working hours.

C. Noise is associated with low quality of sleep which causes other problems such as tiredness, stress and other bodily changes.

D. Sleep is not the only factor which is interfered due to noise pollution; there are other functions that are affected among people.

With active populations, road traffic, industry and construction, cities are expectedly noisy places. Noise is a leading source of dissatisfaction for city residents. Urban noise affects the quality of lives of people residing there. It also causes serious and long-term harm to health. Noise disturbs sleep which results in stress, fatigue and changes in body's chemical balances. Noise interferes with certain cognitive functions such as attention, concentration and memory.

A. The main cause of noise pollution is the people remaining active throughout the day and they are able to pay attention to their tasks for more duration.

→ (Not Follow, the passage says noise reduces attention — not improves it).​

B. The noise pollution is evident only in those urban areas where industries are located and people are not sleeping properly due to long working hours.

→ (Not Follow, noise comes from many sources (not just industries).​

C. Noise is associated with low quality of sleep which causes other problems such as tiredness, stress and other bodily changes.

→ (Follow, This is directly mentioned: noise → sleep disturbance → stress, fatigue, chemical imbalance).

D. Sleep is not the only factor which is interfered due to noise pollution; there are other functions that are affected among people.

→ (Follow, Passage says noise also affects attention, concentration, memory cognitive functions).

only C and D are correct.

Thus, the correct option is: (d)