Question 3 of 5 4.0 Points Why might packets be queued in the buffers of a router? Select ALL that apply. A. Packets might be queued at an output port when there is not enough capacity to move packets from the input port into the router's switching fabric. B. Packets might be queued at an output port when there are multiple input ports sending packets to the same output port through the router's switching fabric. C. Packets might be queued at an input port when there is not enough capacity to move packets from the input port into the router's switching fabric. D. Packets might be queued at an input port when there are multiple input ports attempting to send packets to the same output port through the router's switching fabric