I NEED HELP ASAP Describe the types of error that make a poll less than 100% accurate

The answer is option c.

Ithink the answer is a :

from the conditions of the working class in england by friedrich engels,the main idea is :

manchester's leaders hoped to oppress its working class to benefit factory owners.

Social darwinism refers to the the theory that people who succeed in our economic system will one day out compete those who fail. one day the rich will out succeed the poor so we'll that there will eventually be no more poor