Correct option is C
Given:
8 March 2009 is a Sunday,
Total no of day between 1 February to 8 march in without leap year (because 2009 is not a leap year.) = 36 days
No of odd days = 1 day.
So on 1st February2009 will be Sunday - 1 = Saturday
Total no of odd days between 2009 to 2021 = 12 days + 3 days (because 2012, 2016 and 2020 is a leap year)
No. of odd days = 12 + 3 = 15
Total odd days = 1 + 15 = 16
When 16 divided by 7 we get reminder 2
Thus on 1 February 2021 will be Saturday + 2 = Monday.
Correct answer is (c) Monday.