【单选题】People do not have secret trolleys at the supermarket, so how can it be a violation of their privacy if a grocer sells their purchasing habits to a marketing firm? If they walk around in public view, ...
A.
the computer technology can be used to protect people's privacy in public.
B.
the technology of computing information may interfere with people's privacy.
C.
personal data should not be released to the public for commercial use.
D.
the computer technology is to blame for intruding upon people's privacy.