What social media site couldn't you live without?

trying to figure out what the most popular social media site is. I chose 5 that i think are probably up there with the most used. so which couldn't you go a day without?
Facebook
Vote A
Twitter
Vote B
YouTube
Vote C
snapchat
Vote D
instagram
Vote E
Select age and gender to cast your vote:
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What social media site couldn't you live without?
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