Seminal plasma, the fluid part of semen, is contributed by
I. Seminal vesicle                               
II. Prostate
III. Urethra                                       
Iv. Bulbourethral gland

1. I and II

2. I,II and IV

3. II, III and IV

4.  I and IV

 (b) The male accessory glands inclucle pairecl seminal vesicles, a prostate and paired
bulbourethral glands. Secretions of these glands constitute the seminal plasma which is rich in fructose, calcium and certain enzymes.
The secretions of bulbourethral glands also helps in the lubrication of the penis.
Urethra is the duct that extends through the penis in male reproductive system and serve a comman passage for both sperm and urine. In female, urethra has no reproductive function.