The correct option is Application portability across cloud providers.

This capability means the application is designed and packaged so it can run on different cloud platforms with minimal rework. Portability is achieved by using platform neutral runtimes and packaging such as containers, relying on open standards and orchestration, and by keeping infrastructure as code and configuration portable. When those practices are followed the application and its supporting components can be migrated from one vendor to another.

Cloud data portability is focused on moving data between environments and does not by itself address runtime dependencies, configuration, or service bindings that an application needs to run on a new cloud platform.

Multitenancy describes sharing resources among multiple customers or tenants and it does not enable moving an application between different cloud vendors. It is an architectural model rather than a migration capability.

Rapid scalability refers to the ability to scale resources up or down quickly on a given platform and it does not provide the portability or independence needed to transfer an application between cloud providers.

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