Answer:
b. family related problems
Step-by-step explanation:
Based on the information provided within the question it can be said that the most likely reason for her early repatriation was family related problems. This can be said because a multinational enterprise hires expatriates, and since Sara accepted the offer it means that the money in the offer was tempting and the company wouldn't have made the offer if they didn't think Sara was a good choice for the position. Therefore the most logical reason for terminating her contract would be family related problems in the United States, causing her to need to travel back to the States in order to handle it.