C all the others are included in history
The Romans introduced D. Camels to North Africa
Very interesting and also tough question. I'm not quite sure about..
Answer:
It provided Spain with free Native-American labor to produce more crops cheaply.
Explanation:
The Spanish collected tributes and crops from Native Americans, whom they forced to work for them. Because they didn't have to pay them like they would have to with Spanish laborers, they could harvest more crops for trade and export for a lower cost. This built Spain's economy, allowing even more power and conquest of the New World.
Answer: Ernest Hemingway,F. Scott Fitzgerald,Edwin Hubble that became famous
Explanation: these were a few hope this is what you were looking for