What number system is known as denary?

The denary number system, also known as the decimal system, is characterized by its use of ten distinct values, which are the digits from 0 to 9. This system is the foundation of everyday counting and arithmetic that most people are familiar with, making it intuitive and widely applicable.

In denary, each digit's position represents a power of ten, enabling calculations and representations of quantities in a way that aligns closely with human cognition and everyday usage. Each increase in position represents an increasing power of ten, such as units (10^0), tens (10^1), hundreds (10^2), and so on.

Other options represent different systems or concepts. For instance, the binary system is based on only two values, 0 and 1, and is fundamental in computing. The hexadecimal system is based on sixteen distinct symbols (0-9 and A-F), while floating-point representation refers to a method of storing numbers that can accommodate a wider range of values but is distinct from base systems. Therefore, the defining characteristic of the denary system being based on ten distinct values aligns perfectly with option B.