An element of the formal definition of intellectual disability is IQ below 70. Thus the correct answer is A.
What is intellectual disability?
When a person exhibits specific limits in cognitive performance and capabilities, such as communication, interpersonal, and self-care abilities, it is said that they have an intellectual disability.
Some of the most known prenatal causes of intellectual disability occur before birth, including Down syndrome, foetal alcohol syndrome, genetic disorders, birth deformities, and infections.
An individual with an IQ below 70 considers an inadequate mental or intellectual capacity, as well as a lack of daily living skills. They find it difficult to perform routine tasks.
Learn more about intellectual disability, here:
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