The correct answer is C.
In the first part of "Cruel Tribute," King Minos is seeking revenge for the murder of his only son Androgeos. When he asks the elders if King Aegeus has a son he can offer as tribute, he is given a negative answer.
However, King Aegeus did have a son, and by not confessing his existance, he allows his son, Theseus to continue living in Troezen, where he became a hero.