What does the CONGESTION CONTROL feature for an EXPAND line-handler do?

A.
It provides mechanisms for indicating congestion along intermediate nodes.

B.
It provides mechanisms for managing congestion along end to end nodes.

C.
It uses a static flow control window to limit the maximum number of outstanding
unacknowledged requests.

D.
After errors, all packets are retransmitted, starting from the packet for which an
acknowledgment was not received.