What Mule application can have API policies applied by Anypoint Platform to the endpoint exposed by that Mule application?

What Mule application can have API policies applied by Anypoint Platform to the endpoint exposed by that Mule application?
A . A Mule application that accepts requests over HTTP/1x
B . A Mule application that accepts JSON requests over TCP but is NOT required to provide a response.
C . A Mule application that accepts JSON requests over WebSocket
D . A Mule application that accepts gRPC requests over HTTP/2

Answer: A

Explanation:

* HTTP/1.1 keeps all requests and responses in plain text format.

* HTTP/2 uses the binary framing layer to encapsulate all messages in binary format, while still maintaining HTTP semantics, such as verbs, methods, and headers. It came into use in 2015, and offers several methods to decrease latency, especially when dealing with mobile platforms and server-intensive graphics and videos

* Currently, Mule application can have API policies only for Mule application that accepts requests over HTTP/1x