Answer:
That it could be exercise and the presence of windows that impacted mood.
Explanation:
According to a different source, these are the options that come with this question:
- That exercise boosts mood.
- That it could be exercise and the presence of windows that impacted mood.
- That mood affects commitment to exercise.
- That happy people exercise.
In this experiment, one group received windows and exercise, while the second one received no windows and a video. After the conclusion of the experiment, the first group appeared to be happier. As there are two different variables that changed between the two groups, it is not possible to determine with one caused the happiness. Therefore, it could both be exercise and the presence of windows that impacted mood.
