Answer: Lysergic acid diethylamide (Acid)
Explanation: Lysergic acid diethylamide (Acid) is categorised as a hallucinogenic drug which is mainly used for recreation or religious purpose, it has about 8 to 12 hours duration of action time.
Effect of this drug often includes; increased body temperature as well as blood pressure, Hallucination (seeing, touching, hearing things that are not actually there), altered feelings, awareness and thought, dilated pupils, etc.
Jenn's strange behavior or actions might have been cause by a drug called Lysergic acid diethylamide (Acid) as she was seeing things that weren't actually there and was sweeting due to her increased body temperature and pressure as her heartbeat rate increased. She seemed disoriented and have a dilated pupils as she might be experiencing an altered awareness of her surrounding.
This symptoms best match that of a person who have taken or ingested Lysergic acid diethylamide (Acid).