Final answer:
Jose is performing in a decisional role when he acts as a resource allocator or negotiator, according to Henry Mintzberg's categorization of managerial functions. Hence, the correct answer is option B.
Step-by-step explanation:
When Jose acts as a resource allocator or negotiator for his organization, he is performing in a decisional role. This is one of the ten roles categorized by Henry Mintzberg, a renowned management theorist, within managerial functions. The decisional role includes four sub-roles: entrepreneur, disturbance handler, resource allocator, and negotiator. As a resource allocator, Jose is responsible for deciding where the organization's resources are best applied. In the capacity of a negotiator, Jose would represent the organization in negotiations with other parties to secure the best possible outcomes.