The correct name for the compound SF3 is sulfur trifluoride.
Here’s the explanation: In chemical nomenclature, the prefix ‘tri-‘ indicates that there are three fluorine atoms bonded to one sulfur atom in this molecule. The ‘sulfur’ part refers to the sulfur element, and ‘trifluoride’ accounts for the three fluorine atoms. Therefore, SF3 is properly named sulfur trifluoride, making option D the right choice.