Final answer:
The term for using X-ray to image internal body parts is radiography. It involves creating two-dimensional images, whereas Computed Tomography (CT) scans provide more detailed three-dimensional views.
Step-by-step explanation:
The term that refers to the use of roentgen ray (X-ray) to image internal body parts is radiography (Option A). Radiography is a technique that uses X-rays to create two-dimensional images of the interior of the body, which helps in diagnosing and monitoring various medical conditions.
X-rays are a form of external radiation commonly used for medical imaging to view organs and bones. While standard X-rays provide two-dimensional views, advancements in technology have led to more complex imaging methods such as Computed Tomography (CT or CAT scans), which use X-rays in conjunction with computers to produce cross-sectional views and detailed three-dimensional images of body structures.