Final answer:
The MOST appropriate use of the internet in this situation is going to a website to order more hair dye for the salon.
Step-by-step explanation:
The MOST appropriate use of the internet in this situation would be going to a website to order more hair dye for the salon. This activity is directly related to Yasushi's work and will help him manage inventory and ensure that the salon has enough supplies.
Looking at last night's "red carpet" pictures for hairstyles, checking his friend's posts on social media, and responding to a personal email about an event that night are not directly work-related and may not be the best use of his time during work hours.
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