What urban problems discussed in your textbook does riis touch upon in this passage?

First of all, the passage mentions street children by saying "children pitching pennies" and "kicks and cuffs are their daily diet". Also, pollution is touched in this passage as it mentions "summer stenches" which are bad smells that come because of urbanization and the drains that have foul smells (hence they mention "sink").  We also see how neighborhood noises and noisy people from all around the area show up in urbanized areas because of cramped spaces. Hence, quarreling is mentioned here as well as instances of profanity. 

C.east asiais the answer.