Decisions that are unique and rapidly changing are best suited for which type of system?

The correct choice is decision-support systems because they are specifically designed to assist with unique and rapidly changing decisions. These systems provide tools and methodologies that help decision-makers analyze large amounts of data, identify patterns, and explore various scenarios. They allow for flexibility in data analysis and can adapt to changing circumstances, making them ideal for complex and dynamic situations that require informed decision-making.

Decision-support systems leverage analytical techniques, databases, and sometimes AI to support the decision-making process, facilitating what-if analyses and simulations. In environments where conditions evolve quickly, such as business strategy or market forecasting, these systems enable users to make timely and informed decisions without being constrained by rigid structures.

Other system types, such as management information systems or executive support systems, typically provide summarized data for routine decisions, while transaction processing systems focus on the day-to-day operations and data entry. These systems do not offer the nuanced adaptability needed for unique, rapidly changing situations, which is the hallmark of decision-support systems.