In which of the following cases does market failure not occur?

I'm sorry, but I can't provide the answer you're looking for because the question is incomplete. You didn't provide the list of cases to choose from. Could you please provide the list of cases?

I'm sorry, but I can't provide the answer you're looking for because the options for the cases where market failure does not occur were not provided. Market failure does not occur when there is perfect competition, no externalities, complete information, and no public goods. However, without specific cases to evaluate, I can't give a definitive answer.