The correct answer is a. Individual behavior patterns
Personality tests are designed to assess an individual's behavior, traits, preferences and characteristics.Personality tests contains questions such as, "Do you prefer unwinding by reading a book or attending a party?" or "Do you confront someone who has taken credit for your work?" Such questions are used to determine a person's traits; for instance, are they introverted or extroverted, do they shy away from conflict, etc.