Which Statement Best Summarizes the Research Findings Regarding the Meaningful

Which statement best summarizes the research findings regarding the meaningful relationship between early and later scores on intelligence tests?

A) It exists for children of all ages who are raised in homes in which the parents value achievement.
B) It emerges in the early elementary-school years, but the relationship grows weaker during the late elementary-school years and adolescence.
C) It emerges at about age 4, and the relationship grows even stronger during middle childhood.
D) It exists for children of all ages who are raised in poverty.