alleryIn intellectual disability, deficits must appear before what age?
A12 years
B18 years
C15 years
D25 years
Answer & Solution
Correct answer: B. 18 years
1. Recall the fact: The developmental period means ages 0 to 18.
2. The option "18 years" matches it.
3. Why the others fail: The other ages are not the stated limit.
4. Check the stem wording against the fact: only one option satisfies both.
_Source: NCERT Class XII Psychology, Ch 1 Variations in Psychological Attributes (lepy101.pdf), "Intellectual Deficiency"_
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