McDonald's is the most successful fast-food franchise in history. That history would include 1984...and this quiz asks you to remember what products were for sale at a California-based McDonald's in February 1984.
This quiz includes everything listed on a drive-thru menu board.
You might want to try some variations of similar items if you're stuck. (Sizes, amounts, flavors, etc.)
It appears to be impossible since no one has been able to do it yet. I think I would eliminate all the different sizes--coke should be acceptable for all three coke sizes, same for the other different drink sizes and mcnuggets could be acceptable for the different sizes of mcnuggets. Or the time could be extended, which would allow more attempts to get the exact wordings required.
(There's one in the breakfast section, too, that I found hard to offer the right "acceptable answers" for...)
Don't mind the quiz being difficult but it shouldn't be impossible.