Your answer would be B). Traffic rules and regulations are likely different in her new state. Not every states laws are the sames, and it can differ in every state. One state could allow something, but another state might not allow it. It is safe for Melissa to check for rules and regulations in the new state she's going to so she can follow all of the laws without getting in trouble. It's also good to check the new laws because some officers don't care if you're new in the area, they'll still give you a ticket if they wanted to. Reading the new rules and regulations could save Melissa money and time.
