B, founded the Niagara Movement
Technically speaking, it would be "family" that represents a social group that exists in all known cultures, since families are generally crucial for the survival of the individual.
They planted victory gardens for soldiers.
Answer:
the transcontinental railroads were built all around the US and were used for trade and to transport goods all over the place
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<span>The first workers' associations of the 19th century aimed to improve working conditions. Letter c)
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