Problem: Yvette is a 3 year old girl. She meets an elderly woman in line at the supermarket for the first time. Yvette tells the woman all about the birthday party she just had. Yvette tells the woman "I like you," and then pauses and asks: "Why weren't you at my party?" Identify which theory can best provide insight to this child's cognitive development: a. Piaget's theory b. Vygotsky's theory c. Neither; this example is not primarily about cognitive development. Need Assignment Help?