**Core Concept**
Barton's fracture is a type of intra-articular fracture of the distal radius, characterized by a fracture of the radial styloid process with a dislocation of the radiocarpal joint. It is a specific type of fracture that is often associated with a perilunar dislocation.

**Why the Correct Answer is Right**
The correct answer is a statement about Barton's fracture that is true. Barton's fracture typically involves a fracture of the radial styloid process, a dislocation of the radiocarpal joint, and usually an ulnar styloid process fracture. The mechanism of injury often involves a fall onto an outstretched hand, leading to a combination of axial loading and radial deviation forces.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because Barton's fracture does not involve a fracture of the distal ulna.
* **Option B:** This option is incorrect because Barton's fracture typically involves a dislocation of the radiocarpal joint, not a dislocation of the distal radioulnar joint.
* **Option C:** This option is incorrect because Barton's fracture often involves a fracture of the ulnar styloid process, not a fracture of the scaphoid bone.
* **Option D:** This option is incorrect because Barton's fracture is a specific type of fracture that is distinct from a Colles' fracture.

**Clinical Pearl / High-Yield Fact**
One key point to remember about Barton's fracture is that it often requires a specific treatment approach that takes into account the intra-articular nature of the fracture and the associated dislocation of the radiocarpal joint.

**Correct Answer:** C.