In the context of modern scientific research, consider the following statements about IceCube', a particle detector located at South Pole, which was recently in the news: 1. It is the world's largest neutrino detector, encompassing a cubic kilometre of ice. 2. It is a powerful telescope to search for dark matter. 3. It is buried deep in the ice. Which of the statements given above is/are correct?

1. IceCube, located at the South Pole, is indeed the world's largest neutrino detector, utilizing a volume of one cubic kilometre of Antarctic ice as its detection medium. Hence, statement 1 is correct. 2. While its primary function is detecting high-energy neutrinos from astrophysical sources, IceCube data is also used to search for indirect signals of dark matter, such as neutrinos produced from dark matter annihilation or decay, effectively making it a tool in the search for dark matter. It acts as a telescope by using neutrinos to view the universe. Hence, statement 2 is correct. 3. The Digital Optical Modules (DOMs) that act as sensors for IceCube are deployed on strings lowered into boreholes drilled deep into the Antarctic ice, specifically between 1,450 and 2,450 meters below the surface. This deep burial shields the detector from surface cosmic rays. Hence, statement 3 is correct. 4. As all three statements are correct, the correct option is (D).