A nurse is reviewing the different signs of pregnancy with a client who is in her first trimester.Which of the following symptoms should the nurse classify as a positive sign of pregnancy?

Choice A rationaleA positive pregnancy test is a presumptive sign of pregnancy, indicating the presence of hCG (human chorionic gonadotropin), a hormone produced during pregnancy. However, conditions other than pregnancy can sometimes cause elevated hCG levels.Choice B rationaleHegar's sign, which is the softening of the lower uterine segment, is a probable sign of pregnancy detected by a healthcare provider during a pelvic examination. Probable signs are more objective but still not definitive proof of pregnancy.Choice C rationaleFetal movement felt by the provider (not the mother) is a positive sign of pregnancy. This is because the provider can objectively confirm the presence of a fetus. Other positive signs include visualization of the fetus via ultrasound and auscultation of fetal heart tones.Choice D rationaleBreast tenderness and nausea are presumptive signs of pregnancy. These are subjective symptoms reported by the woman and can be caused by hormonal changes associated with pregnancy but can also have other causes.