While Driving Alone in Her Car, Lumka Suddenly Looks Around

While driving alone in her car, Lumka suddenly looks around and, for a moment, she can't remember where she is, how she arrived at this point on the road, or even why she is driving her car.Lumka is experiencing

A) derealisation.
B) depersonalisation.
C) the early stages of what will eventually become a severe psychotic disorder.
D) the symptoms of a mood disorder.