Which biomolecule's function is most likely to be affected by the order of its
single-molecule units (monomers)?

I think that it's DNA

The correct answer is B) any occurrences of unusual odors.

A qualitative data is something that is not described by numbers. The pH of water, oxygen concentration, and changed in the size of fishes can all be described by a number.

Only the occurrences of usual odors cannot be described by a number.