This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Which is he investigation of choice to differentiate between benign and malignant thyroid nodule? 
Select and explain. 
A. USG, B. FNAC, C. Scintigraphy, D. Biopsy
B: FNAC
Answer: B: FNAC 
Explanation: Answer- B. FNACFNAC is the investigation of choice to differentiate between benign or malignant solitary thyroid nodules.