In the late 1800s, city planners improved urban life by a. requiring those seeking government jobs to take examinations. b. rewarding supporters with some 12,000 jobs. c. passing zoning laws, creating building-safety codes, and developing public parks. d. establishing the society of american indians.

c. passing zoning laws, creating building-safety codes, and developing public parks

Explanation:

During the late 1800's, the urban landscape started to quickly change in the United States. This was pushed for some time by the city planners, as they wanted to make the cities more beautiful, safer, and well organized. The zoning laws passed, which meant that the cities were going to get well organized, and everything will be set by zones, all of which had certain purpose. The buildings were built in a modern way, being more beautiful, but also much stronger and safer. Lot of public parks have been created, bringing beauty, freshness, and nice recreational zones.

can you post options so i can ?

the answer is a) the proclamation of 1763.