Questions Refer to the Sources Below

Questions refer to the sources below. Conquest of the Aztecs drawn by an Amerindian convert in the sixteenth century, based on oral histories and traditional style.
"It especially made him [Montezuma] faint when he heard how the guns went off at [the Spaniards'] command, sounding like thunder, causing people actually to swoon, blocking the ears. And when it went off, something like a ball came out from inside, and fire went showering and spitting out. And the smoke that came from it had a very foul stench, striking one in the face. And if they shot at a hill, it seemed to crumble and come apart. And it turned a tree to dust; it seemed to make it vanish, as though someone had conjured it away. Their war gear was all iron. They clothed their bodies in iron, they put iron on their heads, their swords were iron, their bows were iron, and their shields and lances were iron. And their deer that carried them were as tall as the roof."
The Florentine Codex. Written in the sixteenth century by Spanish Franciscan Friar Bernardo de Sahagun based on the accounts of Nahua men who were his converts.
-Which of the following is an accurate comparison of the historical situation of both of the sources?

A) Spanish observers of the conquest created both sources.
B) Amerindians who fought against the Spanish created both sources.
C) Both were motivated to disparage Spanish military superiority.
D) Both were based on accounts from Amerindians whom the Spanish conquered.