Suppose the matrix A with column vectors V₁, V2, V3, V4 is row equivalent to the matrix C with column vectors W₁, W2, W3, W4. If W₁ = W₁-W₂ + 2w3, then which of the following statements MUST be TRUE? (Select all that apply) span(V₁, V2, V3, V4) = span(V₁, V2, V3) V₁ is in span(v2, V3, V4) span(V1, V2, V3, V4) = span(W₁, W2, W3, W4) V4 = V1 V2 + 2V3 as they are row equivalent dependency did not change span(W₁, W2, W3, W4) = span(w₁, W2, W3)

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