Chemistry · Properties of Noble Gases

With reference to helium and its strategic significance, consider the following statements: I. Helium belongs to the noble gas group and remains chemically inert under most conditions. II. Helium is widely used in MRI systems because of its ability to maintain superconducting magnets at extremely low temperatures. III. Unlike hydrogen, helium can be easily solidified at normal atmospheric pressure by lowering temperature alone. IV. Supply disruptions in helium can affect sectors such as healthcare, cryogenics, and space technology. How many of the statements given above are correct?