The European Union began with the development of a O A. plural society.
O B. consumer class.
O C. common market.
O D. defense organization.

Psychologists studying infant memory want to determine at what age babies can remember specific events. an experimenter uses several puppets to demonstrate a series of actions while the infant watches. after a delay, the experimenter records how many of the actions the child imitates when playing with the puppets. what is the dependent variable?