What are the chemical names of these compounds?

A) KF: Potassium Fluoride, Mg₃N₂: Magnesium Nitrate
B) KF: Potassium Fluoride, Mg₃N₂: Magnesium Nitrate
C) KF: Potassium Fluoride, Mg₃N₂: Magnesium Nitrogen
D) KF: Potassium Fluoride, Mg₃N₂: Magnesium Nitride
E) KF: Potassium Fluorine, Mg₃N₂: Magnesium Nitrogen