Final answer:
The process component of an information system is responsible for generating the most useful information for decision-making. It turns raw data into meaningful information, which is essential in a postindustrial society where information is a key commodity.
Step-by-step explanation:
The purpose of an information system's process component is generating the most useful type of information for making decisions. The correct answer to the given question is a. process. The process component includes methodologies and procedures that take raw data and transform it into meaningful information, which is then used to make strategic business decisions. While external and internal data are important inputs and a database stores this data, it is the processes applied that ultimately determine the usefulness of the information produced. In a postindustrial society, information is considered the most important commodity (c. Information), as it is crucial for knowledge-based decision-making.