Final answer:
The accountant can fulfill the role of a consultant in selecting the final system for purchase to meet the organization's AIS needs. Option a.
Step-by-step explanation:
The role in which the accountant can help meet the organization's AIS needs by selecting the final system for purchase is as a consultant option a. As a consultant, the accountant can provide their expertise and knowledge in selecting the most suitable system that fulfills the organization's requirements. They may evaluate different options, consider factors such as cost, functionality, and compatibility, and make a recommendation based on their analysis.