What is the result of an e-commerce HTTP server that processes the input queue at a rate equal to or greater than that of incoming requests?

What is the result of an e-commerce HTTP server that processes the input queue at a rate equal to or greater than that of incoming requests?

A.
Network bandwidth decreases.

B.
The server performs adequately.

C.
The site visitor experiences a delay.

D.
A bottleneck occurs.