A solutions architect is designing a disaster recovery (DR) strategy to provide Amazon EC2 capacity in a failover AWS Region. Business requirements state that the DR strategy must meet capacity in the failover Region. Which solution will meet these requirements?

A Capacity Reservation ensures that you have EC2 capacity available when you need it, even during peak demand. This directly addresses the requirement to meet capacity in the failover Region for disaster recovery. On-Demand Instances do not guarantee capacity, as they are subject to availability. An EC2 Savings Plan offers discounted pricing but does not reserve capacity. Regional Reserved Instances provide a billing discount and reserve capacity for a specific instance family within a Region, but a Capacity Reservation offers a more precise and guaranteed reservation for specific instance types and Availability Zones, which is crucial for DR scenarios where immediate capacity is paramount.