You have an existing Azure IoT hub.
You need to connect physical IoT devices to the IoT hub.
You are connecting the devices through a firewall that allows only port 443 and port 80.
Which three communication protocols can you use? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
A. MQTT over WebSocket
B. AMQP
C. AMQP over WebSocket
D. MQTT
E. HTTPS