Answer: option C - referred pain
Explanation:
A gallbladder attack will induce pain in ANY part of the body UNDER the term REFERRED PAIN. For MS. Carroll, the pain was "referred" to the shoulder blade.
Note that whenever pain is felt at a body part different from the origin of the pain, It is due to the coordinated network of sensory nerves, supplying different tissues of the body
So, referred pain has affected Ms Carroll