A possible organizational strategy for research reports is chronological order. The third option provided is correct.
The most necessary point in such types of document is to classify all the main facts and points which the reaserch does content. Chronological order refers to ordering events in accordance with the time sequence in which they took place.
A research report is a document created by an analyst or strategist who is a part of the investment research team in a stock brokerage or investment bank.