The correct answer is the option C: changes in M in the short run can cause Real GDP to fall.
Explanation:
To begin with, the monetarist economists are the one that support the idea of not having any intervention from the government regarding the economy and moreover they are the ones whose ideology focus mainly in the money, as it name indicates. Therefore that when the government decides in the short run to increase the amount of the money supply then the monetarists argue that the action done by them will cause the Real GDP to fall because of the high inflation that it will cause the increase of the money supply and consequently low demand, etc.
Personal selling is one of the methods used by salespeople to drive sales. It involves face-to-face interaction with customers who are persuaded to purchase the product.
This method relies heavily on effective communication mostly the two-way flow of communication.
Two-way flow of communication means that when a message is conveyed to the customer there is feedback to the salesperson. The feedback is used to decide the best course of action to be taken in order to complete the transaction