Which sentence uses informal language? Roman architects built aqueducts to transport water across the entire city of Rome. Rome had more advanced infrastructure than other cities of the same size. The emperor Augustus built public baths to promote good hygiene and reduce illness. The guy in charge of Romans thought dirty people were gross, so he made public baths. (ILL MARK FIRST/CORRECT BRAINLEST)

"The guy in charge of Romans thought dirty people were gross, so he made public baths," is the sentence that uses informal language.

In comparison to the other sentences, this one has a very casual nature. The choice of words are more simple, familiar, and less informative.

explanati“there were many such dangers, in which the odds were all against them. their children were not as well as they had been at home; but how could they know that there was no sewer to their house, and that the drainage of fifteen years was in a cesspool under it? how could they know that the pale-blue milk that they bought around the corner was watered, and doctored with formaldehyde besides? when the children were not well at home, teta elzbieta would gather herbs and cure them; now she was obliged to go to the drugstore and buy extracts–and how was she to know that they were all adulterated? how could they find out that their tea and coffee, their sugar and flour, had been doctored; that their canned peas had been colored with copper salts, and their fruit jams with aniline dyes? and even if they had known it, what good would it have done them, since there was no place within miles of them where any other sort was to be had? the bitter winter was coming, and they had to save money to get more clothing and bedding; but it would not matter in the least how much they saved, they could not get anything to keep them warm. all the clothing that was to be had in the stores was made of cotton and shoddy, which is made by tearing old clothes to pieces and weaving the fiber again. if they paid higher prices, they might get frills and fanciness, or be cheated; but genuine quality they could not obtain for love nor moneyon:

a historian is attempting to study how the puritans affected society in new england