The answer is A - “it lacks a variety of sentence structure.” :)
The assassination of Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, and his wife Sophie in Sarajevo (the capital of the Austro-Hungarian province of Bosnia-Herzegovina) on 28 June 1914 eventually led to the outbreak of the First World War
Answer: "Nor orphan's spoils become the minion's prey", "Nor injur'd cities weep their slaughter'd sons", and "And standing troops, the bane of every state,
Forever spurn'd, shall be remov'd as far" are correct.
"And stretch their empire o'er the wide domain.
On a broad base the commonwealth shall stand" is incorrect. I think the fourth excerpt is "Nor petty pretors plunder here for kings" but I'm not sure.
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