You need to ensure that there is adequate bandwidth available to meet the service-level agreement requirements. <br /> Which action or actions should you perform? ()
A、 Upgrade all WAN lines in six months.
B、 Upgrade all WAN lines prior to implementing NewApp.
C、 Analyze the cause of a peak in network usage in February.
D、 Analyze network usage characteristics for NewApp.Based on these results, create an upgrade plan for the WAN lines.