when private railroad promoters asked the united states government for subsidies to build their railroads, they gave all of the following reasons for...

when private railroad promoters asked the united states government for subsidies to build their railroads, they gave all of the following reasons for their request except that it was a. too risky without government helpb. too costly without government helpc. the railroads would repay the subsidies by oaying higher taxes d. private investors would not acept initial financial lossese. impossible to serve military and postal needs without government help