When the Social Readjustment Rating Scale was updated in the 1990s, the researchers found that

a. participants felt they had better control over their stress responses.
b. the life-change unit estimates had decreased by 45 percent.
c. men in the 1990s reported experiencing more stress in their lives than women did.
d. people reported experiencing higher levels of stress than the original 1960s sample.

Answer: d. people reported experiencing higher levels of stress than the original 1960s sample.