During 1915 and 1917, u-boats attacked not only enemy ships but also troops stationed close to shore. cities near the shoreline. german submarines. commercial supply ships.

D. commercial supply ships.

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deists, human beings can know god only via reason and the observation of nature, but not by revelation or by supernatural manifestations

hope this

i believe the answer is:

-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.