What key body of water did the north control by the end of 1863?

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.

b. sec, foreign relations

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b

it was bribing i think i might be wrong though