Counting & ProbabilityHardNumber Theory Toolkit ShareNumber Theory Toolkit · Hard problemToday is Wednesday. What day of the week was it 100010001000 days ago?AFriday\text{Friday}FridayBTuesday\text{Tuesday}TuesdayCThursday\text{Thursday}ThursdayDMonday\text{Monday}MondayENone of these\text{None of these}None of theseCheck Show answer Walk through it step by step Practice more like this Review this concept