**Core Concept**
Mandibular fractures can be categorized based on their location and displacement, leading to varying degrees of facial deformity. The displacement of the fracture fragments determines the extent of facial widening.

**Why the Correct Answer is Right**
The correct answer is a fracture that affects the angle of the mandible, causing the fracture fragments to displace laterally and resulting in facial widening. This occurs due to the action of the masseter muscle, which pulls the posterior fragment of the mandible away from the anterior fragment, widening the face. The fracture of the angle of the mandible disrupts the normal alignment of the mandibular arch, leading to a cosmetic deformity.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because a fracture of the body of the mandible does not typically cause facial widening. The body of the mandible is less likely to displace laterally due to the action of the masseter muscle.
**Option B:** This option is incorrect because a fracture of the condyle of the mandible may cause facial asymmetry, but it does not typically result in facial widening.

**Clinical Pearl / High-Yield Fact**
When assessing a patient with a mandibular fracture, it is essential to evaluate the degree of displacement and the location of the fracture to determine the extent of facial deformity. A fracture of the angle of the mandible is a common cause of facial widening.

**Correct Answer:** C.