Let x,y,z be (non-zero) vectors and suppos w=5x+5y+4z. If z=-x-y, then w= -x-y. Using the calculation above, mark the statements below that must be true. A. Span(w, x) = Span(x, y) B. Span(w, x, z) = Span(x, z) C. Span(w, y, z) = Span(w, x, y) D. Span(x, y, z) = Span(w, z) E. Span(w, z) = Span(w, x, z)

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