Answer:
B. is the only based on true facts I know
If the worker is efficient and professional,it's worthwhile.Because you will get a better job done which compensates the higher wage.
I believe its to prevent diseases, promote health, and help the population as a whole to live longer
Answer: C.
The plow was affordable and was better suited to the grasslands of the Midwest.
Explanation: Why was the steel-faced plow an important invention?
It was used for farming to break up tough soil without soil getting stuck to it. It was invented by John Deere in 1837 when the Middle-West was being settled. The soil was different than that of the East and wood plows kept breaking.