Which statement best describes germany’s submarine campaign during world war i?

a. germany made no use of submarines.
b. germany used submarines in land and sea attacks.
c. german submarines made unrestricted attacks on ships.
d. german submarines prevented all transatlantic shipping.

Review the statement. after the spanish-american war, the united states gained control of samoa, guam, and puerto rico. which options most accurately analyze how this expansion transformed the united states? (select all that apply.) a. it prevented the united states from developing its economic might. b. it allowed the united states to establish a military presence abroad. c. it established its presence on the world stage as an imperial power. d. it led to an increase in tension between the united states and canada.