A 32-year-old G3P2 woman at 39+4 weeks presents in active labor. On abdominal examination, the head is palpable in the right hypochondrium, the back is anterior, and fetal heart sounds are best heard above the umbilicus. Vaginal examination reveals a fully dilated cervix with a soft mass and irregular bony landmarks. What is the MOST likely malpresentation and the MOST appropriate immediate management?
A
Complete breech – allow vaginal delivery
B
Frank breech – proceed with assisted breech delivery
C
Transverse lie with shoulder presentation – emergency cesarean section
D
Face presentation mentoanterior – trial of vaginal delivery