<span>The correct answer is the plow. Before plows, there was no way to use the land to its full extent. Shovels couldn't dig far deep in and it was kind of pointless, while plows were pulled by bulls and horses way before the tractor was invented. The sickle was just a long knife useful for cutting crops but other things could be used too.</span>
Spades couldn't harvest far immersed inside and it was kind of pointless, while plows were dragged by animals and horses way before the engine was designed. The sickle was just a large blade beneficial for reaping products but other things could be utilized too. 100% the correct answer
