Why would we need a second question mark? Is the choice different from offering coffee or tea?
– Yosef BaskinMay 11 '20 at 13:15
You've given a credible reference, which (similar / dissimilar) answers at the previous thread don't. The use of a sentence fragment is not much further away from totally acceptable norms, but I suppose OP indicates a single sentence.
– Edwin AshworthMay 11 '20 at 13:19
@YosefBaskin As a "planned" question involving both coffe and tea I don't see the necessity of two question marks, but in the case of a second part which is a corrective (making up for what's suddenly seen as negligence, for instance), the lapse of time and changes in intonation seem to be no better rendered than by two question marks. I think that similar concerns are also valid for those suggestions for a memoir.
– LPHMay 11 '20 at 15:22