Transcontinental railroad was not built before the civil war because: a. congress refused to consider federal subsidies for a private railroad. b. north–south sectional differences prevented congress from selecting a route. c. many southern states used the states' rights argument to reject federal aid for railroads. d. the technologies for building long tunnels through the rockies did not exist.

the correct answer is d. the monetary reserve is a set of funds represented in currency, money or similar, saved as a forecast of possible needs or for legal reasons.

the increase or decrease in the monetary base influences in the increase or decrease of the inflation rate. therefore, the excess of monetary reserve will cause the reduction of inflation.

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.