Answer:
Solomon argues that depression is a middle-class phenomenon by:
A: He provides examples of people who suffer from depression from various backgrounds.
Step-by-step explanation:
The reasons behind this answer are two: first of all, Solomon starts his narrative by providing examples of people who have suffered depression and the key elements that allowed it to affect them. In the second place, he associates these key factors with the middle-class and its problems. Concluding that it is a middle-class phenomenon.