It's B because all the rest of them are required.
Explanation:
In April 1994 the Mandela-led ANC won South Africa's first elections by universal suffrage, and on May 10 Mandela was sworn in as president of the country's first multiethnic government.
Answer: <em>I think the answer is B, hope this helps! If not so sorry.</em>
Explanation:
Earth is made up of mantle.
Silicon, magnesium, iron, and other minerals
-cassie