Step 1: Understand number system bases.
Binary (base 2)
Octal (base 8)
Decimal (base 10)
Hexadecimal (base 16)
Step 2: Explanation of hexadecimal
Hexadecimal is a base-16 number system. It uses 16 symbols: 0-9 and A-F, where A represents 10, B represents 11, and so on.
Step 3: Correct answer
The base of the hexadecimal system is 16.