A. Each request-response pair is dependent of others
B. Request- response is a stateless communication model
C. Client server architecture of Request-response uses queues
D. In request-response publisher is a client and broker are server.

Solution

B. Request- response is a stateless communication model

Explanation

<p><span style="font-size: 14px;">The Request-Response model (like HTTP) is stateless.</span></p><p><span style="font-size: 14px;">It follows the client-server architecture.</span></p><p><span style="font-size: 14px;">Each request is independent of the previous ones.</span></p>