The correct option is D with several regions succumbing to cross border terrorism and internal insurgency and breaking into independent kingdoms, and by the rise of the eastern part, with the empire fire -walling the crises, and retaking
(A) with several regions succumbing to cross border terrorism and internal insurgency, breaking into independent kingdoms, the rise of the eastern part, with the empire fire - walling the crises, and retaking
Unparallel; no - by - before the rise
(B) as several regions succumbed to cross border terrorism and internal insurgency and broke into independent kingdoms, and the rising of the eastern part as the empire fire-walled the crises and retook
Unparallel; no - by - before the rise
C) when several regions succumbed to cross border terrorism and internal insurgency and broke into independent kingdoms, and by the rise of the eastern part, where the empire fire-walled the crises to retake
-several regions succumbed…… and broke- is not parallel to - empire fire-walled the crises to retake - The first part is using two simple past tenses namely succumbed and broke while the latter is using a simple past and an infinitive - fire-walled and to retake. This error downgrades C
(D) with several regions succumbing to cross border terrorism
and internal insurgency and breaking into independent kingdoms, and by the rise of the eastern part, with the empire fire -walling the crises, and retaking
The prepositional phrase - with several regions succumbing to cross border terrorism and internal insurgency and breaking into independent kingdoms - is perfectly matched by an equally parallel - with the empire fire -walling the crises, and retaking - both parts using present participles with vantage
(E) Amid several regions succumbing to cross border terrorism and internal insurgency broke into independent kingdoms, and by the rise of the eastern part, as the empire fire -walling the crises, retook Structurally flawed and fragmented without conjunction
Hence D is the answer.