In the market place entrepeneurs compete for the dollar of the consumers. They are willing to interchange goods or sevices for money. The success or failure of an entrepreneur depends on how consumers approve or disapprove the products or services offered by entrepreneurs. If the product or service is seen as good or high quality then that entrepreneur will surely have high demand and will continue in the market place. If the product or service is seen as bad or bad quality then that entrepreneur will disappear.
I would put C, to be honest. so that people can understand just a bit better.
The industrial revolution created more classes, not less. Therefore, arguments about larger gaps in social classes are difficult to support, Prior to the industrial revolution two main classes existed. The landed nobility and their poor farm workers.
A modern scholarly article, the first three are primary sources (Text or items from the time period being investigated) and the last one is a secondary source which was written by someone investigating that time period, therefor it is not an artifact
