After discontinuing heavy use of an antianxiety drug,Angela experienced increased anxiety and difficulty sleeping.Angela was experiencing symptoms of

A) withdrawal.
B) resilience.
C) tardive dyskinesia.
D) neurogenesis.

Angela is experiencing symptoms of withdrawal, which is the set of symptoms that occur when discontinuing the use of a drug that the body has become dependent on. The increase in anxiety and difficulty sleeping are common symptoms of withdrawal from antianxiety drugs. Resilience refers to the ability to recover quickly from adversity and is not applicable in this context. Tardive dyskinesia is a movement disorder caused by long-term use of certain medications and would not be associated with discontinuing an antianxiety drug. Neurogenesis is the process of generating new neurons in the brain and is not directly related to Angela's symptoms.