A I think not really sure
The second one.
Simply put, while one person may think that, another may not.
Answer:
c
Explanation:
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It's not illegal, but never have them on while driving unless you need to warn drivers behind you of a hazard or you're carrying something like for example: On freeways there are some semis and regular trucks who are hauling something/s and need to warn people that it's hazardous or to be careful when passing
