**Core Concept**
The question tests the student's knowledge of fracture types that are prone to nonunion, which is a failure of the fracture to heal. **Nonunion** is often related to the blood supply, stability, and alignment of the fracture fragments.

**Why the Correct Answer is Right**
Although the options are missing, typically, fractures that are known for nonunion include those with poor blood supply, such as **scaphoid fractures** or **femoral neck fractures** in certain contexts. The correct answer would be a fracture type that generally has a good healing rate, such as a **clavicle fracture**, assuming that's what the missing correct answer choice might represent.

**Why Each Wrong Option is Incorrect**
**Option A:** Might represent a **scaphoid fracture**, which is known for its high risk of nonunion due to its fragile blood supply.
**Option B:** Could be a **femoral neck fracture**, especially if it's displaced, as these have a higher risk of nonunion.
**Option C:** Possibly represents another type of fracture prone to nonunion, such as a **Jones fracture** of the fifth metatarsal.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that fractures with a higher risk of nonunion often require more aggressive treatment, including surgical intervention to stabilize the fracture and promote healing.

**Correct Answer:** D. Clavicle fracture.