A University Student Taking Introductory Psychology Decides to Test Piaget's

A university student taking introductory psychology decides to test Piaget's theories of mental development on her 3-year-old brother who loves hot dogs and is very hungry.She shows him two hot dogs.Then,while he is watching,she breaks one of the hot dogs in half.She asks if he would like one hot dog (the intact hot dog) or two hot dogs (the hot dog cut in half) .Consistent with Piaget's findings,the child:

A) selects the intact hot dog.
B) selects the hot dog cut in half.
C) says she is silly because both are the same.
D) becomes confused and starts crying.