A 40-Year-Old G5P1031 Is Attending a Childbirth Education Class

A 40-year-old G5P1031 is attending a childbirth education class. During the class, the woman says, "The worst part of contractions with my last labor was when they were at the peak of intensity." The nurse educator correctly explains that the woman is identifying which part of a contraction?

A) When the uterine wall is resistant to indentation
B) The longest part of the contraction
C) The shortest part of the contraction
D) Descending of contraction