Regarding the causes of mental retardation (intellectual disability), which of the following statements is most nearly true?
A) In one-third of the cases of mental retardation, there is an identifiable biological cause.
B) There is a family history of mental retardation in most cases.
C) both of these options
D) neither of these options

Question

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The Answer of Regarding the causes of mental retardation (intellectual disability), which of the following statements is most nearly true?
A) In one-third of the cases of mental retardation, there is an identifiable biological cause.
B) There is a family history of mental retardation in most cases.
C) both of these options
D) neither of these options

Regarding the Causes of Mental Retardation (Intellectual Disability), Which of the Following