Hiram rhodes revels, blanche k. bruce, and jonathan clarkson gibbs were all:

zheng he was a chinese explorer who lead seven great voyages on behalf of the chinese emperor. his seven total voyages were diplomatic, military, and trading ventures, and lasted from 1405 – 1433. however, most historians agree their main purpose was to promote the glory of ming dynasty china.

explanation:

a) "how old man winter was driven back " and "ormuzd and arimanes"

hope it

i beleive that d is the right answer

the united states broke it's neutrality was the constant german sinking of trading vessels resulting in the loss of lives, one example would be the lusitania.