Chen and Siegler's Study About 1- and 2-Year-Olds' Use of Tools

Chen and Siegler's study about 1- and 2-year-olds' use of tools demonstrated that the older toddlers were more likely than were the younger toddlers to:

A) try to use their hands instead of a tool.
B) generalize the causal nature of what they had learned on previous problems to new superficially different tools.
C) ask their mothers for help.
D) search actively for causes when no cause was apparent.