Which of the following sources would help you narrow the focus of a research paper about what people knew about science at the end of the nineteenth century? A. Willis, Martin. Mesmerists Monsters, and Machines Science Fiction and the Cultures of Science in the Nineteenth Century. The Kent State University Press: Kent,Ohio. 20 B. Osterhammel, Jurgen. The Transformation of the World A Global History of the N. Nineteenth Century. Princeton University Press: Princeton, New Jersey. 2014. C. Agar, Jon. Science in the 20th Century and Beyond. Polity Press:Cambridge, UK. 2012 D. W. E. Bynum Science and the Practice of Medicine in the Nineteenth mith Century. Cambridge University Press Cambridge, UK. 1994 - 2025 Renaissance Learning InC. All rights reserved

## Step 1<br />The problem is asking us to identify which source would be most helpful in narrowing the focus of a research paper about what people knew about science at the end of the nineteenth century. <br /><br />## Step 2<br />We need to evaluate each option based on its relevance to the topic. <br /><br />## Step 3<br />Option A, "Willis, Martin. Mesmerists Monsters, and Machines Science Fiction and the Cultures of Science in the Nineteenth Century", seems to be the most relevant. This book appears to discuss the cultural aspects of science in the nineteenth century, which could provide valuable insights into what people knew about science during this time.<br /><br />## Step 4<br />Option B, "Osterhammel, Jurgen. The Transformation of the World A Global History of the Nineteenth Century", is a global history book and may not focus specifically on the knowledge of science at the end of the nineteenth century.<br /><br />## Step 5<br />Option C, "Agar, Jon. Science in the 20th Century and Beyond", is about science in the 20th century and beyond, which is not the time period we are interested in.<br /><br />## Step 6<br />Option D, "W. E. Bynum Science and the Practice of Medicine in the Nineteenth Century", is about the practice of medicine in the nineteenth century, not specifically about what people knew about science.