[Solved] Which of the following is an example of culture shock? A) "sexting" or sending nude pictures of oneself via text messaging B) first-generation immigrants to the U.S. being unable to speak the language C) American travelers in Greece being uncomfortable by people standing too close to them D) the spread of material cultural elements, such as salsa, around the world Population Decline: A decrease in the number of people in a population due to factors such as lower birth rates, higher death rates, or migration. Technology: The application of scientific knowledge for practical purposes, especially in industry and in the development of innovations. Labor Productivity: A measure of economic performance that compares the amount of goods and services produced with the hours worked to produce them. Specializing: The process of focusing effort and resources on a limited number of activities to gain efficiency and expertise.