The question asks for the number of working days in a 31 day month starting on a Wednesday, where every Sunday and only the second Saturday are holidays. Since a month starting on Wednesday has exactly 4 Sundays and 4 Saturdays, with only the second Saturday counted as a holiday, the total number of holidays is fixed at 5. We can check each option against this fixed holiday count.
Since the month has a fixed holiday count of 5, the working days total \( 31-5=26 \).
Therefore, the correct answer is 26.
A 31-day month is 4 complete weeks, 28 days, plus 3 extra days. Starting on a Wednesday, those 3 extra days repeat Wednesday, Thursday and Friday, so those three weekdays occur 5 times each in the month while every other weekday, including Saturday and Sunday, occurs exactly 4 times. We can check each option by working out the holiday count this decomposition implies.
Since Sunday occurs 4 times and only the second Saturday among the 4 Saturdays is a holiday, the month has exactly 5 holidays and 26 working days.
Therefore, the correct answer is 26.