Which of the following is most likely to emerge last in the development of emotions?

Contentment is a basic and fundamental emotion that can be observed even in infants. It arises from the fulfillment of needs and can be expressed as early as during the first few months of life. Therefore, it develops much earlier than guilt.

Disgust is another primary emotion that emerges early in life, often as a protective mechanism against harmful substances or situations. Infants show signs of disgust in response to unpleasant tastes and smells, indicating that this emotion develops before guilt.

Fear is a basic survival emotion that is evident in babies and young children as a reaction to perceived threats. It develops early in infancy, often in response to sudden loud noises or unfamiliar situations, making it an emotion that precedes guilt in the developmental timeline.

Anger is also a primary emotion that appears in infants when they experience frustration or feel threatened. It typically manifests in the first year of life, indicating that it is an early-emerging emotion, unlike the more complex emotion of guilt.