493.At an intersection with a malfunctioning traffic signal, when a person legally authorized to direct traffic onsite signals drivers to proceed, what is the effect? (A) The directing personnel's hand signals takeprecedence over the traffic signals, and it is lawful to proceed by following their directions. (B) Thedisplayed red light signal shall prevail; otherwise it is deemed running a red light. (C) The driver shouldjudge based on the traffic flow independently, as hand signals are only advisory in nature.