Step 1: Understanding the Concept:
The question asks to identify the proponent of the 'Type C' personality construct. This is part of a typology that categorizes personality patterns, often in relation to health outcomes.
Step 2: Detailed Explanation:
The concept of Type A and Type B personalities was popularized by cardiologists Meyer Friedman and Ray Rosenman in the 1950s to describe patterns of behavior related to heart disease.
The Type C personality construct was introduced later. It describes a person who is patient, passive, cooperative, unassertive, and tends to suppress negative emotions (especially anger). This pattern was initially studied in relation to cancer proneness.
This concept was developed and propounded by researchers Lydia Temoshok and also by Steven Greer and Tina Morris in the late 1970s and 1980s. Given the options, Morris is the correct choice, representing this line of research.
(A) Gordon Allport was a prominent trait theorist.
(B) Meyer Friedman is associated with Type A/B personalities.
(C) Sigmund Freud was the founder of psychoanalysis.
Step 3: Final Answer:
The Type C personality construct was propounded by researchers including Tina Morris. Therefore, Morris is the correct answer among the given options.