The correct option is B CAT- Compound Axial Tomography
Computed tomography is commonly known as a CT or CAT scan, is a diagnostic medical test used to produce multiple images or pictures of the inside structures of the body. The cross-sectional images generated during a CT scan can be reformatted in multiple planes, and can even generate three-dimensional images. These images can be viewed on a computer monitor, printed on film or transferred to a CD or DVD. CT images of internal organs, bones, soft tissue and blood vessels typically provide greater detail than traditional x-rays, particularly of soft tissues and blood vessels.