Ok so <span>The astrolabe was adopted for sea-going
use when sailors learned that they could navigate by measuring the angle
between Polaris (the North Star) and the horizon.
so the answer will be
C
</span>
There were several features that helped industries grow quickly in the country after the Civil War. There was massive influx of immigrants and so there was no dearth of labor force. Also there was great improvement regarding new inventions and technological advancements. There was also great availability of raw materials like timber, oil etc.
I think its
C. The British hoped a victory at Saratoga would make the Americans surrender and end the war.
