Correct option is C
Complementary Coded Decimal (CCD) or Aiken code: The Aiken code (also known as 2421 code) is a complementary binary-coded decimal (BCD) code. A group of four bits is assigned to the decimal digits from 0 to 9 according to the following table.
We can get the CCD equivalent for any decimal number by considering its 9 's complement. Calculation: Given decimal number =325 9 's complement =674 Complementary Coded Decimal (CCD) code =110011011010
