A person filled with grandiose self-esteem, displaying rapid speech and impulsive behaviors, and showing an elevated, expansive, or irritable mood for at least one week is exhibiting symptoms of

A) mania.
B) OCD.
C) stress.
D) catatonia.

The symptoms described are characteristic of a manic episode, which is a defining feature of bipolar disorder. OCD (obsessive-compulsive disorder) is characterized by obsessions and compulsions, not grandiose self-esteem, rapid speech, or an elevated mood. Stress is a general term for a range of emotional and physiological responses to challenging or adverse circumstances, and catatonia is a state of unusual motor activity or unresponsiveness sometimes seen in psychiatric disorders, which is different from the symptoms described above.