Final answer:
A preschooler showing sorrow or concern for a fallen peer is displaying Empathy which involves understanding and sharing in someone else's emotional state.
Step-by-step explanation:
A preschooler responding with sorrow or concern to another child who has fallen down is an example of Empathy. Empathy is the capacity to understand another person's experience and emotions. When a child shows empathy, they are making an emotional connection with the other child and may feel compelled to help or offer comfort.While sympathy involves sharing feelings of sorrow or concern, empathy goes a step further by requiring an individual to put themselves in someone else's shoes and feel what they might be feeling.
Empathy is critical in forming relationships and in prosocial behavior, where one is motivated to help others sometimes even without expecting something in return. This is distinct from altruism, which is acting with a selfless concern for the well-being of others, and from reciprocity, which involves mutual exchange and the expectation of something in return.