The Rapido is a sports car manufactured by the Rapido Motor Co. The Rapido has an excellent reputation for mechanical reliability with one exception, that the motor may stall if the engine has not had an extended warm-up. Driver had just begun to drive her Rapido in city traffic without a warm-up when the engine suddenly stalled. A car driven by Troody rearended Driver's car. Driver suffered no external physical injuries as a result of the collision. However, the shock of the crash caused her to suffer a severe heart attack. Driver brought an action against the Rapido Motor Co. based on strict liability in tort. During the trial, the plaintiff presented evidence of an alternative engine design of equal cost that would eliminate the stalling problem without impairing the functions of the engine in any way. The defendant moves for a directed verdict at the close of the evidence. This motion should be 
denied, because the jury could find that an unreasonably dangerous defect in the engine was a proximate cause of the collision.  denied, if the jury could find that the Rapido was not crashworthy.  granted, because Troody's failure to stop within an assured clear distance was a superseding cause of the collision.  granted, if a person of normal sensitivity would not have suffered a heart attack under these circumstances.