**Core Concept**
Superficial and deep lobe parotid tumors have different surgical approaches due to their anatomical locations and the nerves at risk. The superficial lobe is closer to the facial nerve, while the deep lobe is near the glossopharyngeal nerve and stylohyoid muscle. Surgical treatment of deep lobe parotid tumors involves a more complex approach to avoid damage to these critical structures.

**Why the Correct Answer is Right**
The correct answer involves a subtotal parotidectomy with preservation of the facial nerve, which is a delicate procedure. This approach requires careful dissection to avoid injury to the facial nerve, which is at risk in deep lobe parotid tumors. The surgeon must carefully identify and preserve the facial nerve branches, particularly the marginal mandibular branch, to prevent facial weakness or paralysis.

**Why Each Wrong Option is Incorrect**
**Option A:** A superficial parotidectomy is not suitable for deep lobe parotid tumors, as it would not address the tumor in the deeper lobe.
**Option B:** A radical parotidectomy involves removal of the entire parotid gland, which is not necessary for deep lobe tumors and would result in significant facial nerve damage.
**Option C:** A limited parotidectomy may not be sufficient to remove the tumor completely, increasing the risk of recurrence.

**Clinical Pearl / High-Yield Fact**
When operating on deep lobe parotid tumors, it's essential to identify and preserve the facial nerve branches, particularly the marginal mandibular branch, to prevent postoperative facial weakness or paralysis. This requires meticulous dissection and a thorough understanding of parotid anatomy.

**Correct Answer: C. A subtotal parotidectomy with preservation of the facial nerve.**