A 45 year old male presents with 4 x 4 cm, mobile right solitary thyroid nodule of 5 months duration.The patient is euthyroid.The following statements about his management are true except -

• A. Cold nodule on thyroid scan is diagnostic of malignancy
• B. FNAC is the investigation of choice
• C. The patient should undergo hemithyroidectomy if FNAC report is inconclusive
• D. Indirect laryngoscopy should be done in the preoperative period to asses mobility of vocal cords