单项选择题
A user has reported that everyday at 12:00 p.m. their workstation becomes sluggish with Internet access and overall performance. Which of the following will MOST likely resolve this issue?（）
A. Reschedule the antivirus scan to run after close of business.
B. Add an additional NIC with a connection to the network.
C. Adjust program filters on the workstations firewall.
D. Replace the processor with a known good processor.
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