Which item is an example of a price ceiling?

Agricultural price supports are mechanisms used by the government to stabilize or increase the prices of certain farm products, ensuring that farmers can maintain a minimum income. Unlike a price ceiling, which caps prices, price supports typically involve setting a minimum price floor, which guarantees farmers receive a certain price for their crops.

Environmental taxes are levies imposed on activities that harm the environment, intended to encourage pollution reduction and more sustainable practices. These taxes do not represent price ceilings; rather, they increase the cost of certain activities to discourage them, thereby influencing market behavior.

Minimum wage laws establish a legal minimum salary that employers must pay workers, thus serving as a price floor for labor rather than a ceiling. This regulation aims to protect workers from excessively low wages but does not impose a maximum limit on how much employers can pay.