Correct option is B
Among the number systems listed, each has a different base which determines the range of digits it uses:
(a) Binary: - The base is 2, using only the digits 0 and 1.
(b) Hexadecimal: - The base is 16, using digits from 0 to 9 and letters from A to F. (where A = 10, B = 11, C = 12, D = 13, E = 14, F = 15).
(c) Decimal: - The base is 10, using digits from 0 to 9.
(d) Octal: - The base is 8, using digits from 0 to 7.
Given these bases, the hexadecimal number system uses the largest base, which is 16. This allows it to represent numbers more compactly for the same number of digit places compared to the other systems listed, and it's particularly useful in computing for representing binary data in a more human-readable form.
Thus, the correct answer is: (b) hexadecimal
