Read the sentence from Navita's argumentative essay on the Columbian Exchange,
"Europeans didn't understand that native peoples couldn't fight off certain diseases."
How can Navita best revise the sentence so it has a more formal tone?
Europeans didn't get that native peoples couldn't fight off certain diseases.
O Europeans did not understand that native peoples could not fight off certain diseases,
Europeans were mean and did not get that native peoples could not fight diseases,
Europeans, unlike you and me, didn't understand that native peoples had no ability to fight off diseases,