The idea that the coding categories applied to a given question should allow all possible answers to receive a code is another way of saying that the coding categories should be:
A) mutually exclusive.
B) independent.
C) exhaustive.
D) selective.

Question

Quizplus · Accepted Answer

If the coding categories are mutually exclusive, then each answer can only be assigned one code, which may not always be possible. If the coding categories are independent, then they may not cover all possible answers. If the coding categories are selective, then some answers may not receive a code. Therefore, the coding categories should be exhaustive to ensure that all possible answers can receive a code.

The Idea That the Coding Categories Applied to a Given