The passage is Chicago Rising by Keahu Kahana Which of the following claims is BEST supported by the passage.
A. The 1850s and 1860s were a tumultuous time in Chicago.
B. City planners were foolish to build at a low elevation
C. Chicago was such a busy place that the lifting process was easy to ignore.
D. The development of Chicago was a major technical and physical acheivement

D.

Explanation:

'Chicago Rising' is an article written by Keahu Kahana. The article describes about the conditions from which Chicago city has risen. The author recounts the time when Chicago city was established and began to inhabit large number of population in the 1850s.

The claim that author discusses in this article is that the development of Chicago was a major achievement- technically and physically. The author expresses that how engineers in 1856 began elevating buildings to resolve city's drainage problem. The author asserts that this development of Chicago city was technical as technologies such as jackscrews were used and major work-force to lift up the buildings. It was both physical and technical achievement that made the Chicago city what it is today.

Therefore, option D is correct.

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