Answer:
The correct answer is : A. the number of participants who park in the spot they are directed to
Explanation:
Remember that a variable is an idea, feeling, time period, or any other type of category you are trying to measure. In this study case, tt refers to what can be measured in an experiment and how it is affected during the experiment. It changes as a result of the changes presented. When you take data in an experiment, the dependent variable is the one being studied.