QUESTION 2 If you apply the modus ponens inference rule to: 72 + 7y and 72, what do you get? . B. C. 72 OD. Z QUESTION 3 The current state of the world is {a,c,e}. You apply an action with the precondition a and the effect when (en b) (FA 70). What is the resulting state? O A.{a,e} B. The action is not applicable. OC.{a,c,e,f} OD.{a,e,f}