Answer:
What most people don't know is that ancient Nubia was the site of highly advanced black African civilizations that rivaled ancient Egypt in wealth, power and cultural development. In fact, Nubian kings ruled over Egypt as pharaohs for nearly 100 years.
The correct answer is A) He was named acting president.
Vladimir Putin first became president of Russia when he was named acting president.
On December 31, 1999, Russian President Boris Yeltsin resigned and chose Vladimir Putin as his successor. Russian government organized elections three months later after Yeltsin's resignation. So in the Presidential elections of March 2000, Vladimir Putin was declared the winner. He easily defeated his rival Gennady Zyuganov, who at that time was the leader of the strong Communist Party.
Since that election, Putin has been reelected many times and he is the absolute leader of Russia and one of the most powerful leaders of the world.
Sea explorations were made by many countries centuries ago. These were headed by the European countries long back. The impulses or urges that influenced the explorers are to desire to take hold of other land for territorial expansion.
Another very important thing to consider as well was the trading. One country had to exchange products to another country. Hence, there were need for them to cross the seas.