Final answer:
The correct answer is option c) When contractions are 5 minutes apart. True labor progresses in a positive feedback loop, where uterine contractions stretch the cervix, causing it to dilate and efface. This process is aided by reflexive uterine contractions that further dilate and efface the cervix.
Step-by-step explanation:
The correct answer is option c) When contractions are 5 minutes apart.
True labor progresses in a positive feedback loop, where uterine contractions stretch the cervix, causing it to dilate and efface. This process is aided by reflexive uterine contractions that further dilate and efface the cervix. As labor progresses, contractions become more frequent and last longer. When contractions are about 5 minutes apart, it is an indication that the cervix is dilating and labor is progressing. This is the ideal time for a multiparous mother to come to the hospital for labor.