Which of the Following Is True? During the 19^th Century

Which of the following is true? During the 19^th century

A) a major concern of both Americans and Europeans was health.
B) health promotion in the form of health enhancement techniques and benefit were popular in America.
C) the occurrence of disease in America was routine.
D) the state of medical knowledge during this era was very poor. As a result, physicians and other "healers" were not very good at treating illness and enhancing health.
E) All of the above.