The correct answer is option 4, Antarctica.

To understand why this option is not a minor plate, let`s first clarify what minor plates are. Minor plates, also known as microplates, are smaller tectonic plates that exist within the Earth`s lithosphere. They are fragments of larger plates that have broken apart due to tectonic forces.

Option 1, Nazca, is a minor plate located in the eastern Pacific Ocean, to the west of South America. It is named after the Nazca region in Peru.

Option 2, Arabia, is another minor plate located in the Middle East, covering areas such as Saudi Arabia and the Arabian Peninsula.

Option 3, Philippines, is also a minor plate located in Southeast Asia, specifically in the Philippine Sea. It is adjacent to larger plates such as the Pacific Plate and the Eurasian Plate.

However, option 4, Antarctica, is a major plate. It is the fifth-largest continent and is considered its own plate, known as the Antarctic Plate. It extends to the South Pole and is surrounded by the Southern Ocean.

Therefore, the correct answer among the given options is 4, Antarctica.