Which of the following would not have been possible before the start of the columbian exchange? a. a french farmer uses wheat and barley to make bread. b. a native american hunter uses a rifle to hunt buffalo. c. an aztec king orders his soldiers to attack a neighboring village. d. an african muslim trades salt and spices to european sailors.

B. A Native American hunter uses a rifle to hunt buffalo.

Explanation:

It is called Columbian Exchange to the process occurred between the XV and XVI centuries in which agricultural products and other foods of the New World (the American continent) in the Old World (Europe, Africa and Asia) and vice versa were made known. A broader definition also includes technological advances, demographics and even diseases. The term was coined by the American historian Alfred Crosby in 1972 in his book The Columbian Exchange.

the answers are excess supply, and fall

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answer; philip morin freneau