Respuesta :
A new prokaryotic, unicellular organism is discovered in hot sulfur springs is Archae so answer is D. Kingdom Archaebacteria.
What is Archaebacteria?
Archaebacteria flourish in temperature above a hundred oC (warm springs or hydrothermal vents) have unique protein molecules that don't coagulate at excessive temperatures and continue to be functional.16
Thermoacidophiles are archaebacteria discovered in warm sulphur springs and fantastically acidic environment, they may be temperature and acid-loving bacteria.
Thus well explained.
To learn more Archaebacteria refer to link :
https://brainly.com/question/13917547
