Statement: Lack of stimulation in the first four or five years of life can have adverse consequences.Assumptions:A great part of the development of observed intelligence occurs in the earliest years of life50 percent of the measurable intelligence at age of 17 is already predictable by the age of four.

Statement: Lack of stimulation in the first four or five years of life can have adverse consequences.
Assumptions:
A great part of the development of observed intelligence occurs in the earliest years of life
50 percent of the measurable intelligence at age of 17 is already predictable by the age of four.

Only assumption I is implicit

Only assumption II is implicit

Either I or II is implicit

Neither I nor II is implicit

Explanation:

Answer: Option A
Explanation:
The lacking in first four or five years can be adverse because it is the main period of development. So, I is implicit. Since nothing is mentioned about the predictability of intelligence, II is not implicit.