Answer:
The correct answer would be - different sugar solutions
Explanation:
In a scientific study, there are mainly two types of variables one that is treated or manipulated during the experiment to see the effect on the other variable by mearing that. The variable that is treated as an independent variable and the variable that is measure in the study or research is the dependent variable.
In this research, the treated variable is two different sugars solution without label and the dependent variable is tasted by the 100 people to see what is different they found in the taste.