Answer:
None of them. The correct name of the covalent compound is Boron Trifluoride.
Step-by-step explanation:
BF3 - due to there being 1 Boron atom and three fluorine atoms, we will name:
B - Boron
F3 - because there is three fluorine, we will put the tri- prefix in front of Fluorine and change the ending to -ide.
With that, you get Boron Trifluoride.