But to the TSA and US Immigration both mean option B.
Because, like all of the technically daft, they believe everyone must have a social media account of one sort or another, as life is entirely incomplete or impossible without one.
Which, if all the media reports are true, will result in several hours in a small room being told nothing.
Followed by a blunt statement saying you are being refused entry without possibility of appeal or explanation.
Followed by you being sent back home and having to pay for a visa next time you want to visit as the visa waiver program is no longer available for you.