**Core Concept**
Treatment of carcinoma cervix stage MB (microinvasive or early-stage cancer) involves a multidisciplinary approach, focusing on maximizing local control while minimizing morbidity. The goal is to preserve the uterus and surrounding tissues, if possible, while eradicating the cancer.

**Why the Correct Answer is Right**
For stage MB cervical cancer, the preferred treatment is **radical trachelectomy**, a surgical procedure that involves the removal of the cervix, upper vagina, and surrounding tissues, along with the lymph nodes. This approach is chosen because it offers a high chance of cure while preserving the uterus, allowing the patient to maintain fertility. The procedure is typically performed in conjunction with pelvic lymphadenectomy to ensure the removal of any potential cancer spread.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is likely a distractor and does not provide a specific treatment for stage MB cervical cancer.
**Option B:** This option may refer to a more advanced treatment approach, such as radical hysterectomy, which is typically reserved for more extensive disease.
**Option C:** This option might be a distractor or an incomplete treatment plan, as it does not specify the surgical approach or the extent of lymph node removal.

**Clinical Pearl / High-Yield Fact**
For patients with early-stage cervical cancer, the choice of treatment depends on several factors, including the patient's age, desire for fertility preservation, and the extent of disease. It's essential to discuss the treatment options thoroughly with the patient to ensure they make an informed decision.

**Correct Answer: C. Radical trachelectomy.**