A curb painted green indicates what about parking?

Answer: A — you may only park for a limited amount of time

A curb painted green signifies that parking is allowed, but only for a limited amount of time. This color code is intended to manage parking turnover in areas where short-term parking is needed, such as near businesses or in busy commercial zones. The specific time limit can vary based on local regulations, so it's essential for drivers to check posted signs near the parking area for details on the allowed duration. In contrast, other options describe different parking conditions: a curb that allows all-day parking would be marked differently, while no parking zones would typically feature red curbs or specific signage. Displaying a permit usually refers to areas marked with a specific color indicating permit-only parking, which is not the case with a green curb.