Final answer:
A manager who decides to expand internationally to obtain new customers aligns with the decisional category in Mintzberg's typology, specifically under the entrepreneur role, which makes them a Decisional manager.
Step-by-step explanation:
According to Henry Mintzberg's typology, managers perform ten different roles which can be categorized into three areas: interpersonal, informational, and decisional. The scenario presented involves a manager making a strategic decision to expand internationally to obtain new customers. This kind of activity fits within the decisional category of Mintzberg's typology, specifically under the entrepreneur role, where managers initiate and oversee new projects that will improve their organization’s performance. Therefore, the correct answer to the question would be c. Decisional manager.
The decisional category involves roles that revolve around making choices and includes the entrepreneur, disturbance handler, resource allocator, and negotiator roles. In the context of expansion, the decisional manager not only decides on the strategic move but also manages the associated risks, allocates necessary resources, and potentially engages in negotiations related to the expansion.