One of the Principles of Psychophysics Is That Changes in the Physical

One of the principles of psychophysics is that changes in the physical environment are not always matched by equal changes perceptually. If Madison Wilson was changing an old drink by making it more sweet, what would psychophysics tell her?

A) She would need to understand how people interpret the word "sweet"
B) She would need to research how the perception of "sweetness" changed by the amount of sugar added.
C) She would need to look at the subliminal aspects of "sweetness."
D) She would need to create promotions to tell customers how "sweet" the new drink is.
E) She could make the drink twice as sweet by adding twice the amount of sugar.