Read the following passage and mark...

Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.

A. How cities in the United States began and developed

B. Solutions to overcrowding in cities

C. The changing definition of an urban area

D. How the United States Census Bureau conducts a census