Based on the information in "Edward Jenner and the History of Smallpox and Vaccination," how does the author support the claim that the slave trade played a role in the spread of smallpox? (A)by explaining how smallpox was brought to America

(B)by describing how smallpox was used as a weapon in America

(C)by suggesting that the disease existed wherever enslaved people traveled

(D)by discussing the presence of the disease where enslaved people originated

Excerpt from the trip of a lifetime elizabeth mohn 3 a little more than a week ago, my mother and father started packing our suitcases to prepare for our trip. my entire family woke up early sunday morning, packed the car, and began our expedition to niagara falls. when we reached the american-canadian border, i was excited to enter a foreign country for the first time. the third paragraph is mainly about a) traveling to niagara falls b) leaving the hotel. c) seeing the falls. d) returning home.