Which online resource can help individuals prepare for the driver's license renewal test?

The California DMV website is the most relevant resource for individuals preparing for the driver's license renewal test in California. This site provides comprehensive information specifically tailored to California's driving laws, licensing requirements, and renewal processes. It includes practice tests, detailed descriptions of the topics covered on the written exam, and updates on any changes to regulations or procedures, ensuring candidates are well-informed and adequately prepared.

While the other options may offer general information about traffic safety or transportation at a national level, they do not focus specifically on California's licensing procedures. Therefore, they would not be as beneficial for someone specifically preparing for the California driver's license renewal test.