Help please!! task 2, check my other questions to see task 1!

Why was control of the atlantic ocean essential to great britain’s success in world war 2

What did the us civil rights movement gain new momentum after world 2

To encourage railroad companies to build railroads across the west, the government gave them subsidies by select the best answer from the choices provided. a. paying the wages of laborers b. giving them building materials c. providing railroad trains d. providing free land