I think your answer is, B. Please correct me if im wrong.
North Korea gets their citizens in fear by showing them propaganda about the United States.
The answer is: A. accountant
The main duty of an accountant is to prepares the financial information of an individual or an organisation. In order to do this, you need a really good command of math skills since all the information regarding the assets , liability, and capital of the individuals/organization is recorded in a numerical value.