Fluorination of an aromatic ring is easily accomplished by treating a diazonium salt with HBF4. Which of the following conditions is correct about this reaction?

The fluorination of an aromatic ring using a diazonium salt and HBF4 proceeds via a thermal decomposition reaction. The diazonium salt, when treated with HBF4 (tetrafluoroboric acid), forms a diazonium tetrafluoroborate salt. Upon heating, this salt decomposes to produce the corresponding aryl fluoride, nitrogen gas, and boron trifluoride. The reaction doesn't involve any of the reagents listed in the options (NaF/Cu, Cu2O/H2O, NaNO2/Cu). Therefore, only heat is required for this reaction. Hence, option C is correct.