Answer:
Option: B- steel plow
Explanation:
Farming techniques and tools remained unchanged for thousands of years until the Industrial Revolution. The beginning of the Industrial Revolution in the 1700s introduced many modern machines and tools which helped farmers to improve their farm productivity.
John Deere invented the steel plow to improve farming during the agriculture Revolution. He invented the steel plow himself that was able to cut through hard soil without getting stuck or clogging in the plow. It allowed farmers to cultivate crops more efficiently.
