Answer:
a. subjective well-being.
Step-by-step explanation:
Positive psychology movement is simply defined as the observation or school of thought that has its main focus on human strength and morality.
Martin Seligman is regarded as the father of this positive psychology movement and he states that the focus of this movement is on what makes a human life fulfilling, rewarding and pleasant and also strives to find ways to make live experiences of people better.
The first pillar of the positive psychology movement focuses on the study of subjective well-being