Final answer:
Polycystic ovary syndrome (PCOS) is the common pathological cause of hirsutism.
Step-by-step explanation:
The common pathological cause of hirsutism is a. Polycystic ovary syndrome (PCOS). PCOS is a disorder of the endocrine system that affects women and is characterized by high levels of androgens, such as testosterone, which can lead to excess facial and body hair growth.
In addition to hirsutism, symptoms of PCOS can include irregular menstrual periods, weight gain, acne, male-pattern baldness, pelvic pain, and depression, among others.
Other choices, such as b. Addison disease, c. Hyperthyroidism, and d. Alopecia, are not typically associated with hirsutism.