The correct option is A 200
Given number is 178.
178 lies between 100 and 200
The number formed by the last two digits of 178 is 78.
If the number formed by the last two digits is equal to or more than 50, then the given number is rounded off to the nearest multiple of 100 which is greater than the given number.
∵ 78 > 50.
∴ 178 is rounded off to 200.