Answer:
d. Experience more health problems than usual.
Explanation:
During the 1960s, psychiatrists Thomas Holmes and Richard Rahe developed the Social Readjustment Rating Scale. In their research, the author argued that people who experience a high level of stress because of a change in routine (whether positive or negative) tend to experience more health problems in the period immediately after. They also argued that, over time, life events can add up, increasing a person's risk of developing physical illnesses.