the 1st sentecene is the best on the other ones does not really malke sense
I would prefer to use a document such as an id for proof of identification, I think this because although face identification may be quicker, having physical documentation of who you are is much safer and has much higher rates of success when identifying someone.
The opposite meaning or outcome is irony
The answer is A, I believe
hope this helps, have a great day and good luck!
