A student, 22 years old, after not passed the exam, started to complain of foreign body sensation, like a lump in the throat, difficulty swallowing. Fixed on it, restricts herself in a meal, tearful, seeking to attract attention, demonstrative. Easily amenable to psychotherapeutic suggestion. Which is psychiatric diagnosis of this patient?
A. Hypochondriac disorder.
B. Dissociative disorder.
C. Depressive episode.
D. Obsessive dir Schizophrenia.