Calvin, Whose Measured IQ in Middle Childhood Was 102, Grew

Multiple Choice

Calvin, whose measured IQ in middle childhood was 102, grew up in an impoverished home.Although he made mediocre grades in high school, ​Calvin did graduate and went on to community college where he excelled and earned a scholarship to a university.He earned his teaching credentials and eventually earned his masters degree.Calvin's adult IQ will

A) ​remain stable within the average range until his advanced years when he will experience a sharp decline.
B) ​gradually decline during the adult years like most people with average IQ.
C) ​most likely increase due to his exposure to intellectual stimulation during early adulthood.
D) ​be within the average range throughout his adult years with no increase or decrease since IQ is an innate ability.