In the Context of Women During Pregnancy, Who Among the Following

In the context of women during pregnancy, who among the following is most likely to have a miscarriage?

A) Mira suffers from morning sickness, leading to nausea and vomiting.
B) Salma suffers from edema, which has led to slight swelling of her hands and feet.
C) Carolina suffers from pelvic cramps and vaginal bleeding.
D) Paula notices that her vagina and cervix have taken on a purplish color rather than the usual pink.