The answer would be The Atomic Bomb.
Hello! Your answers are,
A. Row houses and tenements were terribly overcrowded.
C. Poor sanitation and polluted water spread disease like typhus, cholera, and smallpox.
I hope this helped you and anyone else!
Option B
random sample type of sample would be representative of a whole group
<h3><u>
Explanation:</u></h3>
A simple random sample is a subset of a demographic population in which every part of the subset has a uniform likelihood of being preferred. A simple random sample is intended to be an impartial portrayal of a collection.
Each member of the population being considered should possess an equivalent probability of being chosen. A sampling error can transpire with a simple random sample if the specimen does not end up exactly matching the population it is assumed to reproduce.