Which of the Following Statements Adequately Represents Aerobic Exercise Guidelines

Which of the following statements adequately represents aerobic exercise guidelines for a woman during an uncomplicated pregnancy?

A) Continue exercise at levels prior to pregnancy with the understanding that a lower intensity of exercise results in the same level of exertion.
B) Limit exercise to three times a week at a target heart rate during exercise based on a conventional age-based calculation.
C) Women who have not been exercising prior to pregnancy should wait for 3 months after delivery to begin an exercise program.
D) If a woman has exercised prior to pregnancy, all types of exercise can be continued throughout pregnancy, including those with ballistic end-range movements and rapid changes of direction.