Final answer:
The symptoms of vaginal bleeding, severe abdominal pain, and uterine tenderness are signs of complications in pregnancy such as abruptio placentae, eclampsia, and placenta previa.
Step-by-step explanation:
The symptoms that can be signs of complications of pregnancy such as abruptio placentae, eclampsia, and placenta previa are best represented by option 1) Vaginal bleeding, severe abdominal pain, and uterine tenderness. Option 2) High blood pressure, seizures, and severe headaches are more specific to eclampsia. Meanwhile, option 3) mentions abnormal positioning of the placenta and bleeding, which relates specifically to placenta previa but doesn't encompass the other conditions mentioned. Placenta previa is characterized by the placenta covering the opening of the cervix, which can cause profuse vaginal bleeding after week 24 of pregnancy. Eclampsia is a severe form of preeclampsia and is characterized by high blood pressure and seizures. Abruptio placentae, where the placenta detaches prematurely, can result in vaginal bleeding, abdominal pain, and uterine tenderness.