Final answer:
Extraverts may be happier than introverts in terms of positive well-being, but not necessarily in terms of negative well-being. This reflects the differences in how both personality types process emotions and engage with their social environments. The correct option is A.
Step-by-step explanation:
The question asks to fill in the blanks regarding how extraverts and introverts experience happiness in terms of their well-being. The correct answer is a. Positive; negative. This indicates that extraverts tend to be happier than introverts in terms of positive well-being, which includes feelings of joy, enthusiasm, and satisfaction, yet they're not necessarily happier when it comes to negative well-being, which can involve feelings like sadness, anger, and anxiety.
Research in psychology, particularly studies on well-being and personality by researchers like Diener and others, has found that while extraverts may experience higher levels of positive affect and social engagement—contributing to their sense of happiness—introverts may have deeper, more meaningful interactions and reflections that contribute to their own sense of happiness in different ways.