Answer: Typology
Explanation: The correct answer is typology theory. Typology theory was created by Gustav Jung in which he describes twelve different types of personalities depending on the person chacarteristics and taking into consideration a pairing of certain letters that reffers to a type of personality. Those letters are: E (extraversion) , I (intraversion) , S (sensing), N (intuition) , T (thinking) , F (feeling), J (judging) and P (perceiving).