When the SAT Was First Introduced in the Late 1940s

When the SAT was first introduced in the late 1940s, it was supposed to be an objective predictor of academic ability. How well does the SAT predict future achievement?

A) Grade school grades are much better at predicting future performance than results of the SAT.
B) The SAT has proved to be a good predictor of future academic achievement.
C) Results of the SAT are a better reflection of class and social environment than academic ability.
D) The SAT, while not perfect, is much more accurate and objective than Grade school grades as a predictor of future achievement.