1’s complement can be easily obtained by using _________

1s-complement-can-be-easily-obtained-by-using

1’s complement can be easily obtained by using _________
A. Comparator
B. Inverter
C. Adder
D. Subtractor

Right option is B. Inverter

With the help of inverter the 1’s complement is easily obtained. Since, during the operation of 1’s complement 1 is converted into 0 and vice-versa and this is well suited for the inverter.