What is the average Intelligence Quotient (IQ) of normal persons?

What is the average Intelligence Quotient (IQ) of normal persons?
[A]100 to 120
[B]90 to 110
[C]70 to 130
[D]50 to 100

90 to 110
IQ is a number meant to measure people cognitive abilities (intelligence) in relation to their age group. An I.Q between 90 and 110 is considered average; over 120, superior.

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