When 3-Year-Olds Attempting to Master-Conservation-Of-Volume Task Are Asked If There

Multiple Choice

When 3-year-olds attempting to master-conservation-of-volume task are asked if there is more liquid in the taller beaker, they:

A) focus on a single attribute.
B) try to coordinate height and width.
C) answer "yes" only because they cannot express what they really mean.
D) decenter if shown that the liquid will be the same when poured back into the original container.