sean, an 8-year-old boy, has started thinking in terms of tangible objects and actual events but cannot yet understand abstract concepts. he can determine the consequences of a physical action without having to do the action. he has also started engaging in role-taking, which has resulted in him empathizing with the views of others. in the context of piaget's stages of cognitive development, sean is most likely in the . group of answer choices concrete operational stage formal operational stage sensorimotor stage preoperational stage