Final answer:
B) Stress has likely caused an increase in the patient's blood sugar levels. The likely cause for the temporary change in treatment is stress-induced increase in blood sugar levels.
Step-by-step explanation:
The likely cause for the temporary change in treatment for the patient with type 2 diabetes is option B) Stress has likely caused an increase in the patient's blood sugar levels. Stress can trigger the release of hormones, such as cortisol and adrenaline, which can cause blood sugar levels to rise. This is known as the 'fight-or-flight' response. The stress of undergoing a surgical procedure like cholecystectomy can activate this response, leading to increased blood sugar levels and the need for insulin injections.