SHORT ANSWER Use your knowledge of U.S. history to answer questions 6-10. 6. Answer a, b, and c. a) Briefly explain why ONE of the following was the primary cause of the Industrial Revolution between . . . 1865 and 1900. Immigration • Technological improvements Increased agricultural production b) Provide ONE piece of historical evidence to support your conclusion. c) Briefly explain why ONE of the other options is not as persuasive as the one you chose in (a).