B. let m,a (r) be the vector space of 2x2 matrices over r and w, lo :x, y er and w, :x,y, z e r, then dim(w, nw) is equal to 1 (d) 3 (a) 0 (c) 2

B. Let M,a (R) be the vector space of 2x2 matrices over R and W, lo :x, y eR and W, :X,Y, z E R, then dim(W, nW) is equal to 1 (d) 3 (a) 0 (c) 2