Validation of a simulation model occurs when the true steady state average results have been reached

According the text, American CEOs want business graduates they hire to have some education in international business.

A. if they are going to work overseas. B. if they are going to work in a firm with no foreign operations. C. Neither A nor B because they can learn on the job. D. Both A and B

Many of the fast food operations are entering markets in Middle Eastern countries. In the United States, breakfast items are very popular and are responsible for a majority of the profit from sales, primarily from drive-in customers

However, to their dismay, managers found that there was practically no demand for breakfast items. Firstly, due to hot weather conditions, people sleep late and wake up late. Secondly, they do not eat burgers, and sausage or bacon is prohibited. Also, drive-in business is not popular since people go to work at different periods of time. Explain the reasons why these facts were not discovered by marketing research.