Final answer:
The Pillars of Positive Psychology do not include the study of positive institutions.
Step-by-step explanation:
The Pillars of Positive Psychology do not include:
- The study of positive thinking
- The study of character, of positive traits or signature strengths
- The study of positive emotions
- The study of positive institutions
Positive psychology is a branch of psychology that focuses on understanding and promoting well-being, happiness, and positivity in individuals and communities. The four pillars of positive psychology are the study of positive thinking, character and positive traits, positive emotions, and positive institutions. Therefore, the correct answer is option d) The study of positive institutions.