How should an Otto engine be shut down?

Question

PPL(A) - Private Pilot License - Aircraft General Knowledge - How should an Otto engine be shut down?

QuizVDS · Accepted Answer

By completely leaning the mixture

QuizVDS · Answer

By moving the propeller to the feathered position

QuizVDS · Answer

By closing the throttle lever completely

QuizVDS · Answer

By shutting down the generator

PPL(A) EN: How should an Otto engine be shut down?