<span>McGuffey Reader. It shows the most influencing landmarks of literature, with a total of six readers which increased in difficulty. At the same time this book taught important values like charity and honesty. This book became so popular because it allowed to teach several students from different ages.</span>
Answer:
C
Explanation:
hindu's have many gods, so a and d are out. B is out because none of the religions have a central focus on what is good and evil and the divide between them.
Political machines were difficult to break up because they created a cycle of favors for votes in elections.