According to Warner Schaie, in what period do children and adolescents acquire increasingly complex structures for understanding the world through formal operational thought?

According to story grammar, the fundamental building block of a story is the ______

Fill in the blank(s) with the appropriate word(s).

After observing a person at the grocery store get angry and yell at the checker, you conclude that this person is rude. In this situation, you are the ________ and the other person is the ________

a) observer; performer b) actor; perceiver c) performer; observer d) perceiver; actor