input: Text: Obstetrics for beginners It's my first go at delivering a baby by caesarean section – and the foetal head is impacted, jammed in its mother's pelvis. To be honest I'm struggling. Incisions have been made in the lower part of the mother's abdomen and womb. I've pushed my gloved hand inside and managed to slide my fingers between the baby's head and the surrounding uterine tissue. But it's difficult. The baby is tightly wedged in. I've had to push hard to get my hand to the far side of its head, and even though I'm now cupping and grasping it in the approved manner, I can't seem to pull it out. Dare I grip its head more firmly? Dare I pull harder? The baby's mother – she's called Debra – remains impassive throughout these agonised fumblings. Her face reveals nothing of what she may be feeling. But then Debra has no feelings. Indeed she has no face... So you can stop worrying. Debra – Desperate Debra to use her full trade name – is a simulator designed to help doctors practise their skill at dealing with impacted foetuses: babies that get stuck trying to exit the womb by the normal route. She comprises the lower two thirds (ie from the mid-chest region downwards) of a life-sized but limbless female torso made of flesh-coloured silicone rubber. She comes with a vulva, a pre-cut incision in her abdomen and, most importantly, a uterus containing a foetal head that should, in the normal way of things, be free to emerge between her legs. But this fetus is going nowhere until an obstetrician – or in this case me – can successfully grasp and pull it out. The clever and sophisticated simulator I'm playing with started life as a lash-up in an obstetrician's
  Question: When doing a cesarian for an impacted fetus, what might a doctor see?
  
   (A) An arm
   (B) A shoulder
   (C) The torso
   (D) A leg
  Answer:
output: A shoulder