Which of these examples shows reasoning based on fact, not assumption?
A) I always greet customers at the front entrance, so anyone who doesn't is just rude.
B) Aram doesn't like filing, so he probably doesn't like making copies either.
Nile overheard two of his coworkers calling in sick, so he offered to stay and work a double shift to help his manager.
D) Lindsey notices that her boss leaves early when all the work is done, so she does the same.