Answer:
d. By combining high scores into a single comprehensive category
Explanation:
Personality tests (such as the Minnesota Multiphasic Personality) are tests applied by psychologists through questioning or graphic testing to reveal innate and acquired personality traits that are often unknown or unreported by the individual and indicate your character and temperament.
Because personality is complex and involves many different layers of interpretation, sometimes psychologists use more than one test to get a sense of different assessments of the patient's personality. When the use of one more test is performed, the psychologist is most likely to interpret the results of each test by combining high scores into a single broad category, so the psychologist can analyze several different factors of the patient's personality.
I think the answer is nervous system and muscular system work together but i could be wrong.