The once-unclear picture of what makes people happy is coming into focus thanks to new research. Recent studies show that the happiest people surround themselves with family and friends, don't care about keeping up with the neighbors next door, lose themselves in daily activities, and most importantly, forgive easily. Which of the following statements is supported by the passage?
a) Happy people are not necessarily wealthy.
b) People who live alone with little to do tend to be happy.
c) We must understand sadness in order to be happy.