Answer:
Native Americans were vulnerable during the colonial era because they had never been exposed to European diseases, like smallpox, so they didn’t have any immunity to the disease, as some Europeans did.
Explanation:
Wickham was concerned because he had told lies about his relationship with Mr. Darcy to Elizabeth, painting Mr. Darcy as a bad person who did Wickham a grave injustice by taking away his living, the church that Mr. Darcy's father had promised to him. Wickham did not say that he was the one who rejected the church and demanded from Mr. Darcy three thousand pounds instead.
<span>The answer is Letter D. It is written in a tone that is appropriate for an explanatory essay than the other letters. Since the letters a,b,c, is informal for an explanatory essay. Letter D. explains the Neolithic Revolution with formality and proper use of words, than the other letters.</span>
