A network architect has collected data on link utilization. What is the general guideline the architect should be aware of when analyzing the link utilization data?
A. Upgrade a link when its average utilization over 24 hours is 70 percent
B. Upgrade a link if it sometimes peaks at more than 50 percent utilization
C. Upgrade a link that is often used at more than 50 percent utilization
D. Upgrade a link if it ever reaches 70 percent utilization
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