Answer:
The correct answer is D.
Explanation:
1. Bartolomeu Dias was a Portuguese explorer. He was the first European to sail around the southern tip of Africa in 1488.
2. Vasco da Gama was a Portuguese explorer. Following on Dias's steps, in 1498 he was the first European to sail around Africa and reach India by sea.
3. Christopher Columbus was an Italian explorer. He was the first European to cross the Atlantic and reach the Americas in 1492.
