The right option is Prostatitis.
Prostatitis is a mild condition that is characterized by a rise in the level of prostate specific antigen (PSA). Prostatitis causes the swelling and inflammation of the prostate gland (a walnut-sized gland situated directly below the bladder in men). The prostate gland produces fluid (semen) that nourishes and transports sperm. Prostatitis affects men of all ages but tends to be more common in men of 50 years or younger.