You are correct, the answer is A. All of the other options are opinions
"Iturbide defeated the Royalist forces still opposed to independence, and the new Spanish viceroy, lacking money, provisions, and troops, was forced to accept Mexican independence. On August 24, 1821, O'Donojú signed the Treaty of Córdoba, thus ending New Spain's dependence on Old Spain."
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The Great Wall of China( built and maintained from the warring state period to the Ming dynasty)
Augustus was the one that was concerned with marking the Empire's borders
Answer:
It's the first successful English colony in North America,"
Explanation:
