In the Formula F ⃗=Qv ⃗×B ⃗

Multiple Choice

In the formula F ⃗=qv ⃗×B ⃗ :

A) F ⃗ must be perpendicular to v ⃗ but not necessarily to B ⃗
B) F ⃗ must be perpendicular to B ⃗ but not necessarily to v ⃗
C) v ⃗ must be perpendicular to B ⃗ but not necessarily to F ⃗
D) all three vectors must be mutually perpendicular
E) F ⃗ must be perpendicular to both v ⃗ and B ⃗