Answer:
because
Explanation:
its like if this happens because this did that
Mercantilism was a form of economy used by British citizens to make money be selling exports to enrich their motherland.
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.