The first example of comparative advantage appeared in a book that was published in 1817. This example showed that mutually beneficial trade between two countries (England and Portugal) was possible. The example assumed that two goods (wine and cloth) could be produced by both countries. Which of the following describes the conclusion of this example?a. Portugal had a comparative advantage in both wine and cloth, but its advantage in cloth was greater. b. Portugal had a comparative advantage in wine and England had a comparative advantage in cloth. c. England had a comparative advantage in both wine and cloth, but its advantage in cloth was greater. d. England had an absolute advantage in both wine and cloth, but a comparative advantage in wine.

Which of the following is true about presentation methods for providing training? audiovisual techniques are most effective when they are used alone. mobile technologies include training methods such as on-the-job training, simulations, business games and case studies, behavior modeling, interactive video, and web-based training that require the trainee to be actively involved in learning. the typical users for teleconferencing include employees who are part of a workforce that spends most of its time traveling, visiting customers or various company locations and has limited time available to spend in traditional training activities. webcasting involves classroom instructions that are provided online through live broadcasts. classroom instruction is no longer a popular training method because of new technologies such as interactive video and computer-assisted instruction.