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Psychology QUESTION #9885
Question 1
The leading cause of intellectual disability (mental retardation) is believed to be:
  • Fetal alcohol syndrome
  • Organic brain syndrome✔️
  • Environmental factors
  • Inherited traits
Correct Answer Explanation
Organic brain syndrome — encompassing structural and biochemical brain abnormalities — broadly leads intellectual disability cases. Fetal alcohol syndrome is a major preventable cause within this category.