Explanation:

Odd day till 2009 = 7 + 2 + 2 = 11
( Year 2004 and 2008 are leap year and odd days till 2000 = 0)
Odd days in 29 June = Odd days in (January + February + March + April + May + June) = 3 + 0 + 3 + 2 + 3 + 1 = 12
Total odd days = 11 + 12 = 23
Odd days = 23/7 = 2 remaining
The days of the week was Tuesday.
The correct answer is option D.