Well I know that it is not d. The answer that I would choose is the first option a.
If you eat pine nuts, berries, and salmon as part of your diet, you likely live in the "Pacific Northwest," since this is where all of these items can be found (generally speaking).
The correct answer to this open question is the following.
You forgot to mention or attach the lenses that you refer to in the question. However, we can answer is general terms.
When we talk about the term "lens" in research, we are referring to a specific perspective to examine the topic at hand or the study. We can use philosophical lenses, economic, organizational, social, or psychological theories.
So we do not what lens you chose, but whatever your choice was, this lens might change how you approach researching your topic, thus affecting the historical narrative, because that particular approach is going to offer you different sources, authors, perspectives, and research lines to be followed. Your historic narrative would suffer modifications because you will have so many approaches to include in your research.
While Washington's troops were on their way to Trenton they would go across very frozen lakes and rivers in small boats and had to walk miles upon miles after this. This did pay off though, the rivers essentially trapped the British into having them surrender, along with the high ground the Americans had.