Danger area of face is called because of connection of facial veins to cavernous sinus through______________?

Danger area of face is called because of connection of facial veins to

1.	Danger area of face is called because of connection of facial veins to cavernous sinus through______________?
A.	Transverse facial vein
B.	Superior ophthalmic vein
C.	Maxillary vein
D.	Ethmoidal vein
Answer» C. Maxillary vein