Isaac is an American middle-schooler in the present day. Ade is a Nigerian 10-year-old. Thirty years ago, Isaac's father's IQ was 100 when he was in school. Ade's father's IQ was also 100 three decades ago. Today, Isaac's IQ is probably around __________; that of Ade is likely to be approximately __________.

A) 109; 109
B) 109; 100
C) 100; 100
D) 100; 109

Flynn Effect

An observed increase in intelligence test scores, on average, over time, attributed to environmental factors like improved nutrition and education.

American Middle-schooler

A term denoting a student in the United States who is in middle school, typically ranging from ages 11 to 14.

Nigerian

Relating to Nigeria or its people, culture, or language, a West African country known for its diverse cultures, languages, and significant oil reserves.