Correct Answer: Workers who are temporarily employed in a foreign country

Solution : The correct answer is (a) Workers who are temporarily employed in a foreign country.

Guest workers are individuals who are employed in a foreign country on a temporary basis. They are often brought in by the host country to meet labor market demands in specific sectors or industries. Guest workers typically have legal permission to work in the country for a limited period and may be subject to certain restrictions and regulations. They are often recruited from their home countries to fill labor shortages or perform specific jobs that the host country's domestic workforce may not be available or willing to do. Guest workers may work in a variety of sectors such as agriculture, construction, manufacturing, hospitality, or healthcare.