You need to eliminate unnecessary header data, minimize latency, and transmit data over a fullduplex connection

You are developing an ASP.NET MVC application that displays stock market information.
The stock market information updates frequently and must be displayed in real-time. You
need to eliminate unnecessary header data, minimize latency, and transmit data over a fullduplex connection. What should you do?

A.
Implement long-running HTTP requests.

B.
Instantiate a MessageChannel object on the client.

C.
Implement WebSockets protocol on the client and the server.

D.
Configure polling from the browser.