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B
Inhibits salivation
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C
Acceleration of heart beat
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D
Constriction of pupil
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Solution
The correct option is D Constriction of pupil The parasympathetic nervous system, or PSNS, is a part of the nervous system. The nervous system sends signals to and from different parts of the body via nerves. The PSNS is responsible for all the activities that take place when the body is at rest. During a period of flight and fight, the pupils dilate to allow us to see more clearly and make faster decisions. During rest and digest, the PSNS causes the pupils to constrict.
So, the correct option is ' Constriction of pupil '.