Question 0Factorize 9p2 - q2 + 6qr - 9r2A.(3p - 3q + r)(3p - q - 3r)B.(6p - 3q - 3r)(3p - q - 4r)C.(3p - q + 3r)(3p - q - 3r)D.(3q - p + 3r)(3q - p + 3r)E.Objective Show full explanation