A middle aged person reported to Psychiatric OPD with a complaints of the fear of leaving home, fear of travelling alone and fear of being in a crowd.He develops marked anxiety with palpitations and swelling if he is in this situations.He often avoids public transport to go to his place of work.The most likely diagnosis is -

• A. Personality disorder
• B. Agoraphobia
• C. Generalised anxiety disorder
• D. Schizophrenia