You are developing an ASP.NET MVC

application that provides instant messaging capabilities to customers.

You have the following requirements:

Messages must be able to be sent and received simultaneously.

Latency and unnecessary header data must be eliminated.

The application must comply w

ith HTML5 standards.

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.