If I remember it correctly the right answer is B. Religious traditions .
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ISIS :-</u></h3>
ISIS is a universal threat, making strange bedfellows of US, Russia, EU and Iran. But there is no unified approach to combat the group. Saudi Arabia has formed a coalition of 34 largely Muslim nations to fight terrorism, as the main gate for ISIS fighters to go into Syria, which could be pivotal.
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<u>Refugee Crisis :-</u></h3>
Three million Syrians have fled to Turkey, Lebanon, Jordan and Iraq, another 6.5 million displaced in the country. The EU, ideologically divided over how to handle the crisis, is bearing the brunt of refugee migration. Turkey, Greece, Bulgaria, Macedonia and Hungary have built anti-immigrant fences on their borders.
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<u>Volatile Oil Prices :-</u></h3>
Oil trading has becoming more volatile due to growing tension between two, big OPEC players, pushing already slumped prices lower. Saudi's newly severed ties with Iran have destabilized a political situation that will further complicate oil outlook.
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<u>Iranian-Saudi Tension :-</u></h3>
Saudi Arabia executed a dissident Shia Imam by sending out regional shockwaves and inciting violent reaction in Shia-dominated Iran. KSA then severed diplomatic and commercial ties with Iran; Gulf nations followed suit.
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hope it helps
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Mansa Musa was able to bring Islamic culture to Mali by bringing Arab scholars and architects to Mali. Mansa Musa is known as the greatest ruler of his time. He was able to increase the Islamic culture in Africa. He was also called the country's architect. I hope this could help you :)
I assume that it is the Yellow River China.
Ida Tarbell was the muckraker, she was specially known because of the status she had at time