Answer:
a. dilation stage
Explanation:
Dilation stage -
The phase in the pregnancy ,
Cervix is present in the bottom portion of the uterus , this area opens when the women delivers a baby via vagina , is called the process of cervical dilation .
During the process of labor , the cervix opens up to release the head of the baby , which opens up to 10 centimeters , and the process is done automatically in most of the cases .
