Which statement by a pregnant client indicates an understanding of her baby's development at 20 weeks of pregnancy?

At 20 weeks of pregnancy, fetal development is typically around 6.5 inches to 7.5 inches long from crown to rump. This stage is often referred to as the halfway point of pregnancy, coinciding with the beginning of the second trimester. During this time, the fetus has more defined features, and approximately half of the total length it will be at birth has been achieved. The response indicating the baby's length as about 7.5 inches accurately reflects the approximate fetal size at this gestational age, showing a proper understanding of fetal development milestones. Other responses either underestimate or overestimate the typical length for this stage, making them inaccurate representations of fetal growth.