The Rate Law for a Reaction Is Found to Be

Multiple Choice

The rate law for a reaction is found to be Rate = k[A]²[B].Which of the following mechanisms gives this rate law?
I.A + B
E (fast)
E + B → C + D (slow)
II.A + B
E (fast)
E + A → C + D (slow)
III.A + A → E (slow) .
E + B → C + D (fast)

A) II only
B) III only
C) I only
D) two of these
E) none of these