Which of the Following Is the Correct Definition of Intellectual

Multiple Choice

Which of the following is the correct definition of intellectual disability?

A) It is a condition of limited mental ability in which the individual (1) has a moderately low IQ, usually above 50 on a traditional intelligence test; (2) has slight trouble adjusting to the demands of everyday life; and (3) first displays these characteristics by age 25.
B) It is a condition of limited mental ability in which the individual (1) has a low IQ, usually above 70 on a traditional intelligence test; (2) has little or no trouble adjusting to the demands of a competitive environment; and (3) first displays these characteristics by age 5.
C) It is a condition of limited mental ability in which the individual (1) has a low IQ, usually below 50 on a traditional intelligence test; (2) has a lot of difficulty adapting to the demands of a competitive environment; and (3) first exhibits these characteristics by age 25.
D) It is a condition of limited mental ability in which the individual (1) has a low IQ, usually below 70 on a traditional intelligence test; (2) has difficulty adapting to the demands of everyday life; and (3) first exhibits these characteristics by age 18.