I’m not exactly sure, but I’m thinking it may be A . I just learned about this unit previously .
Answer: Myelogram
Explanation:
A myelogram can be defined as the diagnostic imaging test which is usually done by the radiologist. This procedure uses dye and X-rays or computed tomography.
The problems in the spinal cord and muscles, other tissues and nerve are detected by this method.
In case of any any accident or persistent pain in the regions ask for this test to know the exact reason behind the problem.