He is checking for swollen glands, which would indicate infection or disease
All of the above
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Doing research about the company that sent you an email will help you understand what you would be going into. Contacting them to verify will also help you be safe and not get fraud with anything.
Answer:
I think option two will work best.
Explanation:
Hope that. this is helpful.
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One advantage is to be able to put down false accusations from civilians. One disadvantage is lack of privacy in a sense or battery usage.