Answer: d)to make Americans aware of problems in cities
Step-by-step explanation:
Jacob August Riis (1849 – 1914) was a muckraking journalist and photojournalist who wrote the book How the Other Half Lives, to describe the appalling circumstances of the tenement experience in the late 1800s. By doing so, Riis tried to better the living conditions of impoverished people by showing it to the middle and upper classes.