In mild forms, an intellectual disability results from a genetic factor alone. The Option D is correct.
<h3>What is an
intellectual disability?</h3>
Basically, an intellectual disability refers to a condition that limits a person’s ability to learn at an expected level and function in daily life. Levels of intellectual disability vary greatly in children. It is an impairment of the cognitive functioning, characterized by having an IQ of less than 70, given the average IQ is 100.
Some of the most common types of intellectual disabilities includes an autism, Down syndrome, fragile x syndrome, fetal alcohol syndrome, Prader-Willi syndrome etc.
Read more about intellectual disability
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Answer:
His research method is naturalistic observation.
Explanation:
Naturalistic observation refers to <em>observing the subject in its natural context. </em>This type of research method is generally used to get a genuine idea of the subject's life.
In this case, Jack is using this type of research method because he is observing the subjects in their natural context, not in a lab, for example. He is simply observing their reactions to his friend in the elevator without intervening.
Answer:
they were eating too much pasta and pizza