Why might a company respond to a letter-writing campaign launched by a group of concerned consumers?
a. the company might want to prevent the consumer group from lobbying the government.
b. the letters demonstrate the moral wrongness of the company's actions.
c. the company could end up spending a lot of money answering all of the letters.
d. the letters contain a veiled threat that economic pressure could follow.

Which of these would be most useful in studying the effect of germs exchanged between the new and old worlds? a. a graph showing the number of europeans between 1492 and 1600. b. a graph showing the number of native americans between 1492 and 1600. c. a primary source description of the symptoms of an unknown disease affecting native americans in 1492. o d. a primary source description of the symptoms of an unknown disease affecting europeans in 1492.