A network administrator is reviewing the following metrics from a network management system regarding a switchport. The administrator suspects an issue because users are calling in regards to the switch port's performance:

Based on the information in the chart above, which of the following is the cause of these performance issues?

A. The connected device is exceeding the configured MTU.
B. The connected device is sending too many packets.
C. The switchport has been up for too long.
D. The connected device is receiving too many packets.
E. The switchport does not have enough CRCs.