The correct answer is option 2, Mt. Erebus. Mt. Erebus is the only volcanic peak in Antarctica. This active stratovolcano is located on Ross Island and is part of the southernmost active volcano chain on Earth. It stands at a height of 3,794 meters (12,448 feet) and has been erupting for over a century. Mt. Erebus is known for its persistent lava lake, which makes it one of the few volcanoes in the world to have a continuously active lava lake. The volcano is also of great scientific interest, as it provides researchers with insights into volcanic processes in extreme cold environments. Therefore, Mt. Erebus holds significant importance in the study of volcanology and geology in Antarctica.