Explanation:

Weekend means Saturday & Sunday together. In total we have 52 weeks in a year.

So there are 52 weekends in a year.

In normal we have 104 Weekend Days.

We know that a Each normal year has 365 days or 52 weeks plus one day, and each week has two weekend days,

which means there are approximately 104 weekend days each year.
Whereas in a leap year we have 366 days it adds one more day to the year. And what makes the change is the starting day of the year.

Hence, option 3 is the correct answer.