The correct option is A Cowper's gland
A bulbourethral gland which is ,also known as Cowper gland are a pair of exocrine glands present in the male reproductive system. They are about the size of pea and located inferior to the prostate gland and lateral to the urethra in the urogenital diaphragm. The secretions produced by the Cowper's glands help to protect sperm as it passes through the urethra during ejaculation. Thus, the correct answer is option A.