Which statement is accurate?

a. A stressor event is a life situation that places a demand on an individual, a family, or a community that produces, or has the potential to produce, a major change from the previous states so that regular responses cannot effectively address it.

b. The event cannot be normative, such as marriage, such as marriage, the launching of an adolescent, retirement, or relocation.

c. The original event cannot be a one-time occurrence.

d. The original event does not generate additional challenges and does not have a ripple effect over time.