On 1st January 2003 , it was Wednesday . Which day was on 1st January of the next year?

Wednesday Thursday Thursday Saturday

Thursday

In a ordinary year, last day of the year is same as the  first day of year.  therefore, 31st December of the same year is  also Wednesday .  Now , 1 st january of next year i.e. 2004 year = Wednesday + 1 day ahead = Thursday