The first day of the month is Tuesday.
To find the first Saturday, count the days from Tuesday:
- Day 1: Tuesday
- Day 2: Wednesday
- Day 3: Thursday
- Day 4: Friday
- Day 5: Saturday
The 1st Saturday is on the 5th of the month.
Since Saturdays occur every 7 days, the Saturdays of the month are:
1st Saturday: Day 5
2nd Saturday: Day 5+7=12
3rd Saturday: Day 12+7=19
4th Saturday: Day 19+7=26
Therefore, the national day is celebrated on the 26th of the month.
The answer is Option 3: 26th.