Final answer:
The wedding and Clark Kent receiving the Superman suit to save Lois on Air Force One happened in the TV series Lois & Clark: The New Adventures of Superman, which is option d).
Step-by-step explanation:
In the TV series Lois & Clark: The New Adventures of Superman, the characters Lois and Clark had a wedding and Clark Kent received the Superman suit. The memorable event where he put on the suit to save Lois aboard Air Force One occurred specifically in the finale of this series. This answer corresponds to option d) Lois & Clark: The New Adventures of Superman. None of the other series listed, such as Smallville, The Flash, or Supergirl, feature this specific event in their finales.