Which three factors transformed industry during the Gilded Age? A. the expansion of railroads, the reliance on old technology, and the investment of government in business

B. the reliance on old technology, the investment of government in business, and the use of old business models

C. the use of new business models, the rise of new technology, and the expansion of railroads

D. the decrease in immigration, the rise of new technology, and the expansion of railroads

If it is correct, I will mark brainliest! (: