Elementary schools were built in mass numbers as birth rates skyrocketed when US soldiers came home.
High school curriculum became more specialized also
The right answer is B. The Catholic Monarchs supported Columbus in his project to reach Asia, allowing him to make four trips (in 1492, 1493, 1498 and 1502). In the first one of them he arrived not to India (as he expected) but to the island of Guanahani, in the Bahamas. In addition, they granted him a certain number of privileges, such as the title of Admiral, Governor and Viceroy of the Indies, and a percentage of the riches he found.
The correct answer to this open question is the following.
Unfortunately, you did not attach the options for this question. Without the options, we do not what was not an advantage held by the Spaniards over the Native Mesoamerican people.
So the only thing that we can do for you is to answer based on our knowledge of this topic regarding the advantages that the Spaniards indeed had over the indigenous people.
The Spanish conquistadors had metal weapons, fire weapons, armors, and horses, that represented major advantages against the primitive weapons of civilizations such as the Aztecs.
Let's have in mind that in Mesoamerica there were no horses. It was the Europeans who brought horses to America. Natives such as the Aztecas have never seen a horse and they compare it to something similar they had seen before, a deer. Horses for the Spaniards represented an advantage in the purposes of conquest because horses can carry a heavy load and were used in battle.
And regarding fire weapons, native Indians could not compete against that powerful weapon.