Mansa Musa influenced the development of the Mali Empire by promoting the education and provide the Mali Empire a good name for the people to know of during his reign. Musa also provides camels which are almost 300 pieces with a gold.
The answer is: c. They show that the Court has expanded the groups that can expect equal protection of the law
In the past, the protection of the law only specifically mentioned for Male citizens who belong in racial majority.
Over the centuries, the court keep expanded the groups that can achieve protection by the laws (such as women and minorities) and started granted them with various rights which previously only owned by white male citizens (such as the right to vote)
Henry Ford monopolized oil industry, his company, “Standard Oil Company”, would either force a competitor out of business or buy it out.
This was a ruthless tactic, he used horizontal integration to buy up competitors, and drove them out of business, that is why he received the nickname "Reckafellow".
Carnegie switched from railroading to become the master of the steel industry with the U.S. Steel Corporation. He used vertical integration. This company became dominate in steel largely because of his administrative abilities and hired excellent people.
The answer would be "a supporting detail".
In the paragraph that the underlined sentence is in it is talking about how speaking many different, or foreign, languages can help you in life. The underlined sentence supports this because it is giving an example of how speaking multiple languages could help you in life.