Answer
See below.
Work Step by Step
When something is quantized, it occurs only in multiples of an elementary unit. An example we have seen before is electric charge; it always occurs in multiples of the elementary charge of the proton or electron.
Something that is quantized stands in contrast to something that is continuous, such as the distribution of real numbers between 0 and 1. When something is continuous, there is always a value between any two numbers that you might choose.