"Has" would make more sense. A tip would be to read the sentence with both words, one word at a time obviously (So Everyone HAS already voted in the election.) and just go with your gut on which one makes more sense, you can do it!
Thanks for telling. i would totally get caught off guard if the staff are mostly robots- robots scare me for whatever reason. probably because i have a feeling they might turn on us humans and destroy the world or something along those lines.
The answer is B, information utility.
