Which of the following must be true of a quantized measurement?

A. It cannot be precisely known.

B. It can only be a measurement of energy.

C. It must have a smallest possible value.

D. It could have any value, limited by the accuracy of your equipment.

Quantization is a continuous range of values into a finite range of discreet values.

which means we have many values which are continuous but all such values are in discrete forms of fixed numbers.

Like for an example let say the energy of electron inside atom is quantized which means its energy will be in the form of fixed number but there will be large such groups possible.

So quantized value is the smallest possible value which can be possible and such a group of small values can be add together to form a large number

So correct answer is

C. It must have a smallest possible value.