Question

please remember to submit your workbook. what technology revolutionized military communications during the civil war? options: wireless, semaphore, telephone, telegraph

Explanation:

During the American Civil War, the telegraph was the technology that revolutionized military communications. Wireless technology was not developed enough for military use then, semaphore was a visual signaling method with limitations, and the telephone was in its very early stages and not used for military communications on a large scale during the Civil War. The telegraph allowed for rapid transmission of messages over long distances, which was crucial for coordinating military operations.

Answer:

D. telegraph (assuming the options are labeled as A. Wireless, B. semaphore, C. telephone, D. telegraph; if the original options have different labels, adjust accordingly to match the correct option text with its identifier)