Answer- B
Tokamak Energy, an Oxford-based power research company, has developed a new generation of high-temperature superconducting (HTS) magnets that are currently being manufactured and tested in conditions relevant to fusion power plants.
These magnets are crucial in creating strong magnetic fields that can contain and manage the extremely hot, positively charged hydrogen fuel used to generate clean, sustainable fusion energy. The fuel creates a plasma that is several times hotter than the sun.