Which of the following characteristics defines stage 0 prolapse according to the POPQ classification?

Stage 0 prolapse in the Pelvic Organ Prolapse Quantification (POPQ) system is characterized by the absence of any prolapse. This means that all points measured (Aa, Ba, Ap, Bp) are at or above the level of the hymen, specifically within 2 cm of the total vaginal length (TVL). Therefore, the correct choice accurately describes a scenario where all points are at a range indicating no significant pelvic organ descent, aligning with the definition of stage 0.

In this classification, when points like Aa and Ba are at -3 or higher, it indicates that they are well above the hymen level, which is consistent with a healthy pelvic support system. Any advanced prolapse would show points that are either protruding through the hymen or extending beyond it, marking a transition to higher stages of prolapse.