Which approach category is used to determine the applicable approach minimums with Reduced Landing Reference Speed?

The correct answer identifies Approach Category C as the category used to determine applicable approach minimums when utilizing Reduced Landing Reference Speed. Each approach category is defined based on the aircraft's stall speed in its landing configuration, which plays a significant role in determining the minimum visibility and decision altitude required during an approach.

Category C generally encompasses aircraft with a stall speed of 121 knots or more but less than 140 knots, making it suitable for larger regional jets, including the CRJ 900. By using Reduced Landing Reference Speed, pilots can safely adjust their approach speeds, allowing for potential reductions in minimums. This adjustment is crucial for both safety and operational efficiency, particularly in circumstances where precise control of approach and landing is necessary.

In contrast, the other categories (A, B, and D) apply to aircraft with different stall speed ranges and, therefore, have distinct set minimums for approaches. These differences highlight why Category C is the appropriate classification in this scenario. Understanding this relationship between approach categories and landing reference speeds is essential for pilots when navigating approach procedures and ensuring compliance with regulatory requirements.