C. Car accidents were the leading cause of injury-related death in the United States for many years, but drug overdoses have now overtaken them.

David Holmes and colleagues developed the Social Readjustment Rating Scale (SRRS) to measure change due to _____

A) natural disasters B) major life events C) social difficulties D) negative life events

The average family size today is ___________ persons per household

a) 3.5 b) 3.1 c) 2.6 d) 1.8