Answer:
When consumers seek to buy goods at the best possible price they are exercising self-interest.
Explanation:
It's in their best interest to buy a cheaper product.
I would say that life in the cities became more liveable in the late 1800's and early 1900's because for one thing the public mass transportation improved such as with the development of street cars and buses so people could move around more easily. Also, I believe street lighting improved then as well so that streets were well illuminated. Also, housing probably started to include multiple dwellings so many people could live in the same complex but having their own privacy and own facilities.
The U.S. government took over and ran the railroads from 26 December 1917 to 1 March 1920. During the period of government operation, the tracks were obliged to carry a heavy volume of traffic with little attention to replacements or ordinary maintenance.
The answer is D. D is the correct answer choice
