Answer:
The correct answer will be option-A.
Step-by-step explanation:
The scientific hypothesis can be tested on the basis of performed scientific experiments.
In the given question, the person tries to compare the speed of the falling crumpled piece of paper and folded paper. So the experiment will be designed to test the hypothesis which will involve the dependent variables- the speed of falling objects, independent variable- time and constant like same height.
The experimenter will drop both the pieces of paper from the same height and will note the time taken to reach the floor. This same height will help compare the speeds and thus, option-A is the correct answer.