Final answer:
After sustaining a C6 fracture with spinal cord transaction, the nurse should expect quadriplegia with gross arm movement and diaphragmatic breathing as the most likely finding.
Step-by-step explanation:
After sustaining a C6 fracture with spinal cord transaction, the nurse should expect quadriplegia with gross arm movement and diaphragmatic breathing as the most likely finding. Quadriplegia refers to the paralysis of all four limbs and the trunk. In this case, because the injury is at the C6 level, the person will have control over their arm movement and diaphragmatic breathing, but will still experience paralysis in the rest of their body.
Therefore, the correct answer is A. Quadriplegia with gross arm movement and diaphragmatic breathing.