The correct option is B 223
To identify: Smallest number among 332, 223, 232, 323.
Since, all the numbers has 3 digits, compare the hundered's place.
Since 3 > 2, 332 and 323 are bigger numbers.
Consider the numbers 223 and 232.
Here, in both the numbers, 2 is in the hundered's place.
Compare the numbers in the ten's place.
2 < 3. So, 223< 232.
So, 223 is the smallest number among 332, 223, 232, 323.