The Tropic of Capricorn is an imaginary line on the Earth that is positioned at 23.5 degrees south of the equator. It marks the southernmost point where the sun can be seen directly overhead at noon.

Option 1, Australia, is correct because the Tropic of Capricorn passes through the northern region of the country, including the city of Rockhampton.

Option 2, Brazil, is correct because the Tropic of Capricorn crosses the southern part of Brazil, including the cities of Sao Paulo and Rio de Janeiro.

Option 3, Chile, is correct because the Tropic of Capricorn passes through the northern region of the country, including the city of Antofagasta.

Therefore, the correct answer is option 4, "All options are correct." The Tropic of Capricorn passes through Australia, Brazil, and Chile.