<em>The graphic organizer that would be most beneficial for him to create is "cause an effect chart."</em>
The other options of the question were A) sequencing chart, C) timeline and D) categorizing outline.
To understand the consequences of the events during the 1930 Spanish Cold War, John can create a cause and effect chart with the motives that originated the armed conflict and the consequences each motive had on the war. A cause and effect chart is a great tool when doing research. The author can better organize its ideas when having on both sides the reasons and the consequences of the actions. Then, it can make a synthesis with the most important points that the author must include in its paper.