Please help it will be brainlist

What impact did improvements in farming technology near the end of the nineteenth century have on the american economy? a. more energy was needed to power equipment, creating the renewable energy industry. b. less labor was necessary on farms, leading workers to pursue other jobs. c. less money was invested in farming as many locally owned farms went bankrupt. d. more demand for agricultural products reduced the price of food and animal products.

3. suppose most animals behaved in a certain way. would that provide evidence that it is natural for us to follow their lead? if so, what implications would this have for natural law theory? .

What film is responsible for the creation of the pg-13 rating?