It was Sunday on Jan 1 2006 What was the day of the week Jan 1 2010 ........

On 31^st December, 2005 it was Saturday.

Number of odd days from the year 2006 to the year 2009 = (1 + 1 + 2 + 1) = 5 days.

On 31^st December 2009, it was Thursday.

Thus, on 1^st Jan, 2010 it is Friday.

Hence, option 3 is the correct answer.