According to Menstrual History, a Woman Is in the 17^th

According to menstrual history, a woman is in the 17^th week of gestation. She has not had a previous ultrasound examination and the practitioner would like to evaluate fetal growth and gestational age. When is the best time to schedule the ultrasound examination?

A) The examination should be scheduled for one month later.
B) The examination must be scheduled for that day or the next.
C) The examination won't be affected by the appointment date.
D) The examination could be scheduled within the next 2 weeks.