The correct option is Application programming interfaces.

REST and SOAP are approaches for designing and implementing interfaces that let applications communicate with one another, so they are types of APIs. REST is an architectural style that typically uses HTTP and stateless interactions, while SOAP is a protocol that uses XML envelopes and defined message patterns, and both expose functionality as application programming interfaces.

Cloud Endpoints is not the correct category. It is a vendor product that helps expose and manage APIs but it is not the general class of interface that REST and SOAP represent.

Compliance frameworks is incorrect because those frameworks define regulatory and governance controls rather than interfaces for programmatic communication.

IAM policies is incorrect because identity and access management policies control permissions and access rather than describing the interface style or protocol used for application communication.

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