A 33-year-old patient was the restrained driver involved in a front-end collision.

The correct answer is C because in a third-trimester trauma patient with severe abdominal pain , vaginal bleeding , and clear signs of shock , the EMT should strongly suspect abruptio placentae . Official national EMS instructional guidance for pregnant trauma patients specifically lists separation of the placenta from the uterine wall as a key trauma concern, with abdominal pain and vaginal bleeding often present , and notes a high risk of fetal death . This matches the presentation in this question very closely. ( EMS.gov )