Read the following passage andma...

Câu hỏi: Read the following passage andmark the letter A, B, C, or D on your answer sheet to indicate the correctanswerto each ofthe questions from 43 to 50.

A. By the nineteenth century, forts were no longer used by the military

B. Surgeons at forts could not prevent outbreaks of disease

C. Forts were important to the development of the American West

D. Life in nineteenth-century forts was very rough