Melanie used cross multiplication to correctly solve a rational equation. She found one valid solution and one extraneous solution. If 3 is the extraneous solution, which equation could she have solved? 10 because 3 makes a denominator equal zero and is not a solution of the equation derived from I 3 - 4 26 because 3 makes a numerator equal zero and is a solution of the equation derived from cross 41 OA. The equation is I 4 3 - = cross multiplying. O B. The equation is multiplying. 8 C. 5 The equation is = 129 21 cross multiplying. 8 12 OD. The equation is == multiplying. 6 because 3 makes a denominator equal zero and is a solution of the equation derived from +3 4 - 3 because 3 is a solution of both the original equation and the equation derived from cross