What does it mean to "repudiate" something?

The term "repudiate" means to cast off or disown something. It implies a rejection or disavowal of an idea, belief, or relationship, indicating that an individual or group no longer supports or recognizes it. When one repudiates something, they are actively distancing themselves from it, often expressing disagreement or disapproval in a definitive manner. This meaning aligns perfectly with the context of the choice, as it signifies a strong stance against an idea or association.

The other choices suggest acceptance, support, or enhancement of beliefs, which contradict the essence of repudiation. Thus, the correct answer captures the fundamental meaning of rejecting or disowning, making it the most appropriate choice in this context.