In class, evidence was presented about how 2-year-olds requested that their caregivers retrieve a toy that was placed on a high shelf. The key manipulation was whether the caregiver had been in the room when the toy was initially put on the shelf. Results of this study were used as evidence to support which of the following arguments:

a. young children are not always egocentric in the way they communicate
b. young children usually show evidence of being egocentric in their communication
c. young children have a greater capacity to engage in selective attention than was suggested by Piaget's theory
d. young children have substantial difficulty engaging in selective attention

Answer: a. young children are not always egocentric in the way they communicate