[Solved] An efficient point of production is A) a point on the production possibilities curve. B) a point inside the production possibilities curve. C) the point where scarcity no longer exists. D) the point where we are currently producing. Psychosexual Development: Freud's theory on the stages of a child's development focusing on the libidinal energy and how it shifts and matures in different areas of the body. Toddler: is a young child, especially one who is learning or has recently learned to walk, typically aged between one and three years old. Oedipal Complex: According to Freud, children erotically manifest tinged desires for the other-sex parent, accompanied by feelings of hostility toward the same-sex parent. Phallic Stage: A phase in Freudian psychosexual development occurring roughly between the ages of 3 and 6, where the focus of libido is on the genital area.