Pathology Which of the following conditions is the most frequent cause of spontaneous aboion in the first trimester of pregnancy? A Abruptio placentae B Chorioamnionitis C Chromosomal abnormalities D Placenta pre 💡 Explanation Which of the following conditions is the most frequent cause of spontaneous aboion in the first trimester of pregnancy? ✓ Correct Answer: C. Chromosomal abnormalities