Answer:
d. Some or all of their manufacturing or service operations abroad.
Explanation:
Having global operations means that an organization provides its products or services to customers in all over the world. Global operations are not characterized by manufacturing or service only. A bank that provides services both loacally and in foreign countries or a clothing brand with presence in multiple countries could be some examples of global operations. Therefore, global operations may have some or all of their manufacturing or service operations abroad.