You will be given a definition of a task first, then some input of the task.
In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: Between 24 and 36 hours after the peak of release of the hormone LH occurs, it is triggered:
Options: <1> The menstruation. <2> Maturation of the Graaf follicle. <3> The ovulation <4> Oogenesis <5> The formation of the primordial follicle.
Output:
3