To answer this question, we can use the concept of finding the day of the week using the calendar.
If the first of November falls on a Monday, we can determine the day of the week for the 25th of November by counting the number of days between the two dates and finding the remainder when dividing by 7.
In this case, there are 25 - 1 = 24 days between the first and the 25th of November.
Now, let's find the remainder when dividing 24 by 7:
24 รท 7 = 3 remainder 3
Since the remainder is 3, we need to count 3 days forward from Monday.
Starting from Monday, we count Tuesday, Wednesday, and Thursday.
Therefore, the 25th of November will be on a Thursday.
The correct answer is option C) Thursday.