The Major Benefit to a Sequential Design Is That

The major benefit to a sequential design is that

A) the researcher can first make cross-sectional comparisons at the same age, and then feel more confident in the longitudinal comparisons across groups.
B) the research can first make longitudinal comparisons across groups, and then make cross-sectional comparisons within groups.
C) the research can draw correlational conclusions from an experimental design.
D) selective attrition is no longer a potential problem.