Which of the Following Is the Correct Way to Time

Multiple Choice

Which of the following is the correct way to time the frequency of contractions in the pregnant woman?

A) From the beginning of a contraction to the end of the same contraction
B) From the end of one contraction to the beginning of the next
C) From the beginning of one contraction to the beginning of the next
D) After counting the number of contractions in a 15-minute period, multiply by 4