I'm pretty sure it would be C.)Congress votes to increase the income tax, because that relates to stuff inside the nations borders.
The other options deal with stuff outside of the nations borders.
Hope this helps!
Mansa Musa depended heavily on the gold trade for his power.
<span>Mansa Musa depended on a series of local city networks for his power. </span>
<span>Mansa Musa used his connection with the Christian rulers to achieve power. </span>
<span>Mansa Musa encouraged an isolated network of trading cities for his power.</span>
Manifest Destiny was a distinctly racist concept in the first place. The idea was that white man was destined to conquer the west and this meant subduing anyone else who happened to live there. White man alone was entitled to this "destiny". It used the ideas of Jacksonian democracy of a "white man's democracy" to develop these beliefs.
The end of the Roman Republic was attributed to the instability of the Roman economy and conflicts within the military and the ruling families. The Republic should have moved towards absolute democracy instead of relying on the royal families to govern the country.