What is the proper range for a Class D IP network?

A.
0.0.0.0 to 127.255.255.255

B.
128.0.0.0 to 191.255.255.255

C.
192.0.0.0 to 223.255.255.255

D.
224.0.0.0 to 239.255.255.255

E.
240.0.0.0 to 255.255.255.255

Explanation:
Class A: 0.0.0.0 to 127.255.255.255
Class B: 128.0.0.0 to 191.255.255.255
Class C: 192.0.0.0 to 223.255.255.255
Class D: 224.0.0.0 to 239.255.255.255
Class E: 240.0.0.0 to 255.255.255.255