Explanation:
In order to understand why option 'B' is the correct answer, let's first understand what odd days are.

Odd Days:
Odd days are the extra days left over after dividing a given number of days by 7. For example, if we divide 10 days by 7, we get 1 week and 3 days. Here, the 3 extra days are considered as odd days.

Leap Year:
A leap year is a year that is exactly divisible by 4, except for the years that are divisible by 100. However, the years that are divisible by 400 are leap years again. For example, the year 2000 is a leap year because it is divisible by 400, whereas the year 1900 is not a leap year because it is divisible by both 100 and 4.

Now, let's calculate the number of odd days in a leap year.

Calculating Odd Days in a Leap Year:
1. The number of days in a year is 365.
2. We know that 365 days can be divided into 52 weeks and 1 day. So, there is 1 odd day in a non-leap year.
3. However, in a leap year, we have one extra day, making it 366 days.
4. Now, we can divide 366 days by 7 to find the number of weeks and the remaining odd days.
- 366 ÷ 7 = 52 weeks + 2 odd days
5. So, in a leap year, there are 2 odd days.

Therefore, the correct answer is option 'B' which states that there are 2 odd days in a leap year.