A company is migrating its on-premises data center to AWS. They have a large portfolio of applications. The CIO wants to use the '7 Rs' migration strategy. They have identified a legacy mainframe application that is too expensive to rewrite, but the hardware lease expires in 3 months. They also have a commercial off-the-shelf (COTS) HR application that requires heavy maintenance. Which migration strategies should be applied to these specific applications? (Select TWO)

Use the Rehost (Lift and Shift) strategy for the mainframe application using a mainframe emulator on EC2.

Use the Repurchase (Drop and Shop) strategy for the HR application by migrating to a SaaS HR provider.

Use the Refactor strategy for the mainframe application to rewrite it into microservices within 3 months.

Use the Relocate strategy for the HR application by moving it to VMware Cloud on AWS.

Use the Retain strategy for the mainframe application until a modern replacement can be built.

Use the Replatform strategy for the HR application by moving its database to Amazon RDS.