Q.Consider the following statements regarding Superconductivity: (a) The Meissner effect is a characteristic of superconductors where they completely expel interior magnetic fields when transitioning into the superconducting state. (b) Type-II superconductors possess two critical magnetic fields and allow partial magnetic field penetration in mixed states. (c) The practical application of superconductivity is currently limited because all known superconducting materials operate exclusively near absolute zero (-273 °C). Which of the statements given above are correct?