(Choose 1 answer)
To enable the MessagePack Hub Protocol on the server, install the Microsoft.AspNetCore.SignalR.Protocols. MessagePack package in your app. Choose the correct code to enable MessagePack for SignalR in Startup.ConfigureServices method.
A. services.AddSignalR().AddMessagePackProtocol();
B. services.AddMessagePackProtocol().AddSignalR();
C. services.AddSignalR().EnableMessagePack Protocol();
D. services.EnableMessagePackProtocol().AddSignalR();
Exit 1
