Correct Answer - Option 2 : Friday
Number of Days between 8th December, 2006 and 8th December, 2007 → 365 days = 364 + 1 day = 52 weeks + 1 day or in other words 1 odd day.
Since, 8th December 2007 is a Saturday. 8th December 2006 will be the day previous to Saturday that is Friday.
Hence, Friday is the correct answer.