If Three Vectors Add Up to a Zero Resultant It

Multiple Choice

If three vectors add up to a zero resultant it is correct to say that

A) it is impossible to find three vectors that add up to a zero resultant.
B) the three vectors must be co-linear.
C) the three vectors must be in a plane.
D) the three vectors must have the same magnitude.
E) the three vectors cannot have the same magnitude.