Final answer:
Family adjustment is indeed a major cause of expatriate assignment failure.
Step-by-step explanation:
The statement A major cause of expatriate assignment failure is family adjustment is True. Family adjustment is indeed a major cause of expatriate assignment failure. When individuals are sent to work in a foreign country, their family members often face challenges in adapting to the new environment, culture, and lifestyle. This can lead to stress, cultural shock, and difficulty in maintaining family relationships, ultimately affecting the success of the assignment.