Correct option is C
From 14 April 2005 to 14 April 2017 is exactly 12 years.
In a 12-year span, there are 3 leap years (2008, 2012, and 2016), and 9 common years.
Total number of days = 9×365+3×366=3285+1098=4383 days.
Number of days from 14 April 2017 to 10 May 2017 = 26 days
So, the total number of days between 14 April 2005 and 10 May 2017 = 4383+26=4409 days.
On dividing 4409 by 7, we get remainder =6.
So, 6 days after Thursday will be Wednesday.
Thus, 10 May 2017 is a Wednesday.
Thus, correct option is (c).