William has noticed that his daughter Bonnie has recently begun to ask a lot of questions like, "What can I be when I grow up?" and "How come the sky is blue?" This behavior is best associated with the ________ stage of development.
a. autonomy versus shame and doubt
b. intimacy versus isolation
c. initiative versus guilt
d. trust versus mistrust

According to Erikson's Psycho-social development theory, 'initiative vs guilt' is illustrated as the third stage among the eight proposed stages of this psycho-social development theory in which the kids(ranging from years 3 to 5). During this stage, the child starts displaying autonomy and taking 'initiative' to make decisions and exert their authority to explore abilities to act independently.

As per the given example, Bonnie's questioning reflects that she has begun exhibiting her authority and control to act liberally. This exemplifies that she has begun taking the 'initiative' by attempting to explore the world as reflected through these questions. Therefore, option C is the correct answer.