How exactly i don't know much about this app
The correct answer is C. When the Europeans introduced small pox, measles, typhus, and other diseases to the New World.
The Natives did not have the same resistance to these diseases like the Europeans did, and it is said to have wiped out up to 90% of the Native population.
C. Shaped
(A synonym for fashioned is sculpt so my guess is shaped)
Change the phrase "shooting the breeze" because it is too informal and cannot be understood literally.