The best and most correct answer among the choices provided by your question is the third choice or letter C which states that "<span>US workers won the right to unionize before Britain in 1870."
</span>The labor<span> movement in the </span>United States<span> grew out of the need to protect the common interest of </span>workers<span>. </span>
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The main issues defended when signing the Treaty of Paris were the recognition of U.S. independence and the marking of boundaries (B).
The Treaty was signed between the United States of America and George III's Great Britain, as an end to the American Revolutionary War.
Article 1 of the treaty acknowledges the U.S. as free, sovereign, and independent states.
The treaty also established boundaries between the territories belonging to the British Empire in North America (mostly in present-day Canada) and those belonging to the U.S.
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