Ans. Nudges are behavioral interventions that aim to influence people's behavior in a predictable way without restricting their freedom of choice. They can be used in public policy to encourage individuals to make better decisions for themselves and society. For example, a nudge can be used to promote healthy eating by placing healthier food options at eye level in cafeterias or by using defaults that automatically enroll individuals in retirement savings plans. Nudges can also be used to increase organ donation rates, encourage energy conservation, and promote sustainable behaviors. However, it is important to use nudges ethically and transparently, ensuring that individuals are not manipulated and have the freedom to opt out.