Answer:
In the first level courses in human anatomy and the related health sciences, bone marks and bone features (including the proper terms for their description) are also important. To interact efficiently with practitioners interested in healthcare, science, forensics and related fields, it is important to be familiar with the language used for bone markings.
D is the answer to the problem
3 or 2 1 would not make sense
I believe the answer you are looking for is they are all body systems found in the human body, or organ systems.
