Answer :
120 his IQ score.
What is IQ?
The Intelligence Quotient, or IQ, is a measurement tool used to assess a person's intelligence.
An individual's IQ can be measured using a variety of techniques. These vary throughout all organizations.
A person's mental capacity and reasoning abilities can be assessed using their intelligence quotient, which is a widely used measure. We are aware of a person's actual age, and using certain tests created, for this reason, we may determine their mental age.
Mental age refers to a person's level of mental maturity.
Thus, option C is correct.
You can learn more about IQ here:
https://brainly.com/question/6352562
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