What maneuver supports the infant's body with the right forearm while traction is made upon the shoulders during breech delivery?

The maneuver that supports the infant's body with the right forearm while traction is made upon the shoulders during a breech delivery is Mauriceau's Maneuver. This technique is specifically designed for delivering the head of a breech baby when the body has already been delivered or is in the process of being delivered.

In this maneuver, the provider assists by placing their forearm under the infant’s body, often using the forearm to provide support and alignment while traction is applied to the shoulders. This approach helps to facilitate the delivery of the head by providing necessary support and counter-traction, which can be critical in managing a breech presentation effectively and safely.

Other options do not apply in this context. The McRobert's Maneuver is typically associated with shoulder dystocia management, while Turtle's Sign refers to a clinical indication of shoulder dystocia. Cushing's Triad consists of clinical signs indicative of increased intracranial pressure and is not related to delivery techniques.