Preschoolers Bob and Bill Engage in More Make-Believe Play Than

Preschoolers Bob and Bill engage in more make-believe play than Deb and Dawn. Studies have shown that

A) Deb and Dawn will exhibit more advanced theory-of-mind skills than Bob and Bill.
B) Bob and Bill are more advanced in understanding false belief than Deb and Dawn.
C) Bob and Bill will have more difficulty resolving conflicts with their peers than Deb and Dawn.
D) Deb and Dawn probably come from large families with many older siblings.