I'm pretty sure he discovered the Pacific Ocean.
The primary way an archaeologist would decide where a temple stood would be by reading the remains of an ancient statue. The correct answer is B.
The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron.
According to Wikipedia.com