Answer:
A CT scan.
Step-by-step explanation:
CT stands for Computed Tomography which allow doctors to see inside the body with better quality than x-rays. Using a CT scan, it can be monitored organs, bones, tissues, and a more complete anatomy image. Also, a CT scan can offer a 3D image, which enable doctors to see from different point of views. That's why a computed tomography is used to image complex fractures, because allow to reconstruct the area with multiple planes (the image attached show this feature).
Therefore, a CT scan is the correct answer due to the complexity of the damaged wrist.