At the turn of the 20th century, _____ diseases were the leading causes of death, rather than _____ ones
A)infectious, chronic
B)vitamin-deficiency, infectious
C)chronic, infectious
D)vitamin-deficiency, chronic

Question

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At the turn of the 20th century, infectious diseases such as tuberculosis, pneumonia, and influenza were the leading causes of death. Chronic diseases such as heart disease and cancer became more prevalent as the century progressed due to lifestyle changes and medical advancements that allowed people to live longer with these conditions. Vitamin-deficiency diseases were also a concern at the turn of the century, but they were not the leading causes of death.

At the Turn of the 20th Century, _____ Diseases Were