Answer: Katrina and Sharon are exemplifying B. the play stage.
Step-by-step explanation: According to George Herbert Mead, during the play stage, children imitate their parents' actions. In the case of little girls, they tend to pretend to carry out the household chores that, in general, their mothers perform. This is what Katrina and her friend Sharon exemplify because they pretend to wash and iron as their mothers do it at home. Mead also describes this stage as the one in which children do not follow the rules of the games they are playing.