Answer:
D. It has a specific set of possible values.
Step-by-step explanation:
The best description of something that is quantized is that it has a specific set of possible values.
A quantized particle is discrete and can be assigned a value.
Max Planck was one of the pioneers fort the quantum theory of atoms where he suggested that electrons can be categorized based on their energy levels.
In physics quantization implies to be limited to some specific set of values which can be used to describe a quantity or particle