Which of the following could indicate the transition phase of labor?

The transition phase of labor is characterized by intense contractions that are longer in duration and occur more frequently. During this phase, contractions typically last about 60 seconds and can be spaced closer together, often around 2 to 3 minutes apart.

Option B highlights contractions that last for 60 seconds with a 3-minute interval, which aligns with the expected pattern for the transition phase. This phase is known for its intensity, where women may experience stronger, more frequent contractions that indicate active progress in labor.

In contrast, contractions lasting only 30 seconds every 5 minutes, as noted in option A, would not typically reflect the intensity and frequency consistent with the transition phase. Irregular and mild contractions, like those described in option C, do not signify this critical phase of labor. Lastly, the absence of contractions mentioned in option D indicates that labor has not yet progressed, which is inconsistent with the transition phase. Therefore, the characteristics outlined in option B most accurately describe the transition phase of labor.