Theo factored a greatest common factor (GCF) of 4x2y from the expression 12x2y3−20x3y2+32x4y . What error did Theo make, if any?(1 point) Responses Theo could have factored an additional y variable from the expression. Theo could have factored an additional y variable from the expression. Theo didn't make an error. He factored the correct GCF. Theo didn't make an error. He factored the correct GCF. Theo could have factored an additional x variable from the expression. Theo could have factored an additional x variable from the expression. Theo could have factored a higher coefficient from the expression.