**Core Concept**
Arrhenoblastoma, also known as Sertoli-Leydig cell tumor, is a rare sex cord-stromal tumor of the ovary that produces androgens, leading to virilization in females. The pathogenesis of arrhenoblastoma involves the overproduction of androgens due to the abnormal activity of the enzyme 17,20-desmolase.

**Why the Correct Answer is Right**
Arrhenoblastoma is characterized by the excessive production of androgens, which results in the virilization of affected females. This condition is often associated with the clinical features of hyperandrogenism, including hirsutism, acne, and deepening of the voice. The overproduction of androgens in arrhenoblastoma is due to the abnormal activity of the enzyme 17,20-desmolase, which is involved in the biosynthesis of androgens.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because androgen-producing tumors such as arrhenoblastoma are indeed associated with virilization in females.
* **Option B:** This option is incorrect because granulosa cell tumors are typically associated with estrogen production, not androgen production.
* **Option C:** This option is incorrect because Sertoli-Leydig cell tumors, also known as arrhenoblastomas, are indeed associated with androgen production and virilization.
* **Option D:** This option is incorrect because theca cell tumors are typically associated with estrogen production, not androgen production.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that sex cord-stromal tumors, including arrhenoblastoma, can produce a wide range of sex hormones, leading to varying clinical presentations. A high index of suspicion is necessary to diagnose these rare tumors.

**Correct Answer:** B. Granulosa cell tumors.