The correct option is
C 52Aligning both the numbers according to Place value (starting from the right) :
For subtraction, we need to place the like terms of both the numbers together i.e. digits at ones place will be placed together and digits at tens place will be placed together.
By subtracting
4 ones from
6 ones, we get
2 ones.
Similarly, by subtracting
2 tens from
7 tens, we get
5 tens.
Thus, the answer is
52.