"Cook carried out the expedition, which was to chart the astronomy of the planet Venus from the South Seas. He did so successfully, using a converted collier, the Endeavour. During the trip, he also explored New Zealand and the east coast of Australia, which had never been
visited by a European. Cook claimed the lands for Great Britain and drew highly accurate
maps of the region. On his return to England in 1771, he was given a hero’s welcome. By then,
geographers, people who studied the physical features of the earth, thought that there might
be an undiscovered continent on the bottom of the earth."

How do these lines develop a central idea of the article?
SELECT AN ANSWER

A- by emphasizing Cook's value to the navy

B- by describing Cook's contributions to exploration

C- by explaining improvements in the study of geography