Before making a turn, the driver should use the turn signal at what distance before the turn?

Answer: B — 50 feet

Before making a turn, the driver should use the turn signal at least 50 feet before the turn. This allows other drivers and pedestrians to be aware of the driver's intention to turn, promoting safer road conditions and helping to prevent accidents. Using the turn signal at this distance gives other road users enough time to react and adjust their driving accordingly. It is important for drivers to signal in advance so that everyone sharing the road can anticipate the upcoming maneuver.