You are developing an ASP.NET MVC application that provides instant messaging capabilities to customers.
You have the following requirements:
You need to design the application to meet the requirements.
What should you do?
A . Configure polling from the browser.
B . Implement long-running HTTP requests.
C . Implement WebSockets protocol on the client and the server.
D . Instantiate a MessageChannel object on the client.
Answer: D
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