A Study Investigated the Strategies of 4-, 7-, and 12-Year-Olds

A study investigated the strategies of 4-, 7-, and 12-year-olds while playing the video game, Asteroids. This study (Roberts, 1991) found that

A) from the beginning, the older children used more sophisticated strategies than the younger children and continued to perform better than the younger children over time.
B) while the 12-year-old children were initially better than the younger children, by the end of the study the 4-year-olds were just as good having developed the same sophisticated strategies used by the older children.
C) the 7-year-olds maintained their superior performance throughout the experiment.
D) while all groups initially simplified the game by using as few controls as possible, with time, the older groups began to use new strategies, which caused a temporary decrement in performance.