Which of the trends in health issues in the United States between 1900

Which of the trends in health issues in the United States between 1900 and 1955 is accurate?

a. There was a rise in chronic disease such as heart disease and cancer.
b. There was a rise in communicable disease.
c. The crude mortality rate increased dramatically.
d. The life span after diagnosis remained the same.

ESSAYBID ANSWER

ANS: A
Leading causes of death in 1955 were heart disease, cancer, and cerebrovascular disease, whereas in 1900 they were pneumonia, tuberculosis, and diarrhea/enteritis. The mortality rate decreased by 47%. There was a decrease in communicable disease, and the life span after diagnosis increased.