BRAINLIEST AND 30 POINTS George Stephenson was a British inventor and engineer who designed many of the first railroad tracks. How did Stephenson's work contribute to the success of the railroad system?
A. He build his tracks using a type of steel that would last a long time because of the proportion of iron in the rails.
B. He designed a type of track that could be curved around obstacles more easily.
C. He insisted that all of the tracks he designed conformed to a standard size, which made it easier to connect all the tracks later.
D. He worked with locomotive designers to ensure the the trains would run smoothly on his tracks