For the overall reaction 2A+B C which of the following mechanisms are consistent with a rate equation of rate = k[A][B]? Oa. A+B I (fast) I+A-C (slow) Ob. A+B I (slow) 1+A-C (fast) Oc. 2A 1 (slow) B+IC (fast) Od. 2A 1 (fast) I+B C (slow) e. Answers a and d are both correct.