Which of the Following Is an Example of Roundabout Production

Multiple Choice

Which of the following is an example of roundabout production?

A) A farmer switches from growing soybeans to growing wheat, getting fewer crops per year as a result.
B) A farmer switches from growing soybeans to growing wheat, getting more crops per year as a result.
C) A self-employed dressmaker becomes a wage worker at a factory that makes dresses.
D) A coal mine is sold by its owners to its workers and run as a cooperative.
E) A telemarketing firm declares a holiday for two days while a new phone system is installed.