GMAT Sentence Correction (SC) | Re: Of all the possible disasters that threaten American

In GMAT Maybe should be avoided. If that's the case then we have two options.
D. is probably the more difficult to analyze -- here the before more is not correct as more is used to compare between two and so the can't be there.
Which leaves us with option B -- Now B is having probably which is good and the most which talks about certain particular thing (an adverse change).

If I am wrong please correct me.

If found helpful. #Kudos

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