Question

In which stage intellectual development reaches to its climax?

Answer 1

Intellectually the development of the brain leads to the climax after the death of the human being or if you meanthink by the highest intelligence level gained it is around upto 21 years you can gain the intellectual quotient up to an increasingly great level.

Answer 2

The intellectual development reaches at the climax level after the death of a person or human being.

EXPLANATION:

But it can also be seen that the highest intelligence level can be found at the age of the 21 years of the age of the life where the intelligence curve reach the highest peak. So at the time of this age of life, the intelligence level of the human being is so high and the quotient reaches up to the great level.