If the government changes laws, like a ban of smoking and drinking, this can raise the life expectancy from 80 to 90.
Answer:
Cherokee
Explanation:
Apache enemy did not want Apache to trade with French as this could bring number of infectious diseases across the geographic boundaries. The Apache was forced to cancel his mission. He found it difficult to stop the trade with Cherokee. The French natives showed dignity to the Apache.
The correct answer is D, because "their" signifie that they are having "their" conversation, and that they own the conversation. C is incorrect because "there" describes where, B is incorrect because "they" describe who, and A is incorrect because "they are" doesn't grammatically or sensibly fit in, so the answer is D.