Understanding what is wrong with my approach with my solution to this problem- Question from Quant toolkit strategy session 1 video

GRE Verbal Problem Solving
1

I was solving this problem from one of the session’s in one month GRE plan.

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The way greg solved it is, he mentions that theres a support in the two ideas (how WW1 began and how its continued) because of the word continued, which I understood (essentially it started one way and is continuing to be the same is what my understanding of it).

However, contrary to that, I also think that because of the words began and continued which talks about two distinct time periods, isnt there a time contrast that could be applied here? Meaning WW1 started a certain way, but is going on in another way, which contrasts the current idea os jargon and verbal delicacy.

Im confused between the two ideas and cant seem to find an explanation as to why my thought process is incorrect or whether or not its incorrect to begin with.

Thank you in advance.

Edit: I tried solving it, using my logic [having a time contrast beween the began and the continued time periods], we need the opposite of jargon and delicacy, which could be specifics and crude, but going through the option choices, the only valid option I see wherein the first option is a synonym of specifcs would be particularity, but deliberate is actually sort of a synonym to delicacy (both involving careful thinking), and hence even if my way is correct, it seems that theres no valid option for the contrast. Although I still would appreciate an explanation for my first question.

2

I think this is a tricky one in the sense that while the words “began” and “continued” do indicate two different time periods, they don’t necessarily imply a contrast in the situation between these two periods because in this question the word “continued” is the key. It suggests that the way the war is being conducted is not changing significantly from how it began. Therefore, the conditions at the beginning of the war (jargon and verbal delicacy) are likely to persist. Thus, the sentence structure suggests a continuation of the same conditions/ideas, not a contrast.

3

I understand. So its not always necessary that in a gre question, whenever theres two time periods being mentioned, there needs to be a contrast.
Thanks for the explanation.