Let v1 = 0 v2 = -6, and v3 = -4 . does (v1.12.13) span rº? why or why not? | -4] [ 12 ] choose the correct answer below. o a. no. when the given vectors are written as the columns of a matrix a. a has a pivot position in only two rows. o b. yes. when the given vectors are written as the columns of a matrix a. a has a pivot position in every row. oc. no. the set of given vectors spans a plane in r. any of the three vectors can be written as a linear combination od. yes. any vector in r except the zero vector can be written as a linear combination of these three vectors.