Answer:
it
Explanation:
It cannot be "them" becasue telephone is singular and them is plural.
It can't be "her" becasue its not a person
It cant be "that" becasue it changes the tense of the sentence
So the only answer left is "it"
Answer:
Europeans carried a hidden enemy to the Indians: new diseases. Native peoples of America had no immunity to the diseases that European explorers and colonists brought with them. Diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to American Indians.
Yes the writer can I did this same thing