Which statement is true about the relationship between HTTP and WebSockets?

Which statement is true about the relationship between HTTP and WebSockets?
A. A WebSocket connection is a bi-directional HTTP session with message-handling support.
B. A WebSocket connection is initialized with an HTTP handshake.
C. A WebSocket connection can be initialized by either client or server.
D. A WebSocket connection uses HTTP protocol to exchange data with the browser.

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