The correct option is B Seminal vesicle, prostate and Cowper's glands
The male accessory glands include paired seminal vesicles, a prostate and paired bulbourethral (Cowper's) glands. Secretions of all of these glands constitute the seminal plasma, which is rich in fructose, calcium and certain enzymes. The seminal plasma along with the sperms constitute the semen.