Question 1208744
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Ignore the pompous (and incorrect) comment from tutor @ikleyn saying that the response from the other tutor is "INCORRECT/IRRELEVANT" (my quotation marks).<br>
If a car is either red or black, then that "either - or" obviously means one or the other and not both.  But if a car is either red or a Ford, then it can be both.<br>
Being obese and suffering from diabetes are NOT two disjoint things; a person CAN be both.<br>