It is the labels, which is the title of each column. For one column we can have the names, for another column, we can have a label grade. and for the third column, we can have the label scores. And the others are the graphs, formulas and the numbers, which are not an option.
The answer to this question is the PET scan. Positron
Emission Tomography or PET scan is an imaging test that checks and trace for
diseases in the body. This also shows how the body organs is functioning /
working. The doctor can evaluate the function of the patients body by the 3D
color images produced by the PET Scan.