Answer:
Taking steps rather than going to the elevator is healthier for your body and it also keeps you away from being lazy and not walk. You should always use the stairs to go up and down a building to stay fit and healthy.
Explanation:
If he is going with the descriptive investigation approach, everything will mostly be done qualitatively. This approach does not focus on the conclusive result of the study. Instead, it focuses on the detailed path to get to an effective analytical tools, approach or methodolody towards the conclusion.
Thus, with descriptive investigation, you could trim out unnecessary approaches and single out the effective ones. In this way, you will maximize your resources in a short period of time. Thus, the answer is choice A.
Evidence refers to the available body of facts or information indicating wether a belief or proposition is true or valid