Which among below is an important architectural characteristic that describes the ability of one application to be able to communicate with another application on a different application platform ?

Interoperability is the ability of different applications or systems to exchange information and work together, even when running on different platforms or built by different vendors. Serviceability (A) is ease of maintenance. Portability (B) is running on different platforms. Extensibility (C) is adding features. Scalability (D) is handling growth.