A Major Contribution of Early Longitudinal Studies of Gifted Individuals

A major contribution of early longitudinal studies of gifted individuals was

A) they identified the social peculiarities experienced by gifted individuals throughout the years
B) they demonstrated that all individuals who were identified as gifted became experts in their fields
C) they disproved many early theories people held about gifted individuals
D) they demonstrated that gifted individuals experienced longer lives than non gifted individuals