Under what circumstances is a right turn on a red light allowed in California?

Answer: B — When it is safe and legal to do so

A right turn on a red light is allowed in California when it is both safe and legal to do so. This means that the driver must come to a full stop and check for any oncoming traffic and pedestrians before proceeding with the turn. Option A is incorrect because simply making a full stop is not enough, the driver must also ensure it is safe and legal before proceeding. Option C is incorrect because the street does not have to be completely empty, it just has to be safe and legal to make the turn. Option D is incorrect because the driver must yield to pedestrians, but this is not the only requirement for making a right turn on a red light in California.