Let x,y,z be (non-zero) vectors and suppose w=4yxz. If z=x4y, then w= _ x+_ y. Using the calculation above, mark the statements below that must be true.

A. Span(x, y) = Span(w, z)

B. Span(w, x) = Span(w, x, z)

C. Span(x, y, z) = Span(w, x, y)

D. Span(w, y) = Span(x, y)

E. Span(w, z) = Span(w, x, z)