Theo factored a greatest common factor (GCF) of 3x^2y from the expression
15x^3y^2 - 6x^4y^3 + 9x^2y^2. What error did Theo make, if any?
Responses
A. Theo could have factored a higher coefficient from the expression.
B. Theo could have factored an additional y variable from the expression.
C. Theo could have factored an additional x variable from the expression.
D. Theo didn't make an error. He factored the correct GCF.