Which of the following is the correct statement during operation on the submandibular gland ?

• A. The hypoglossal nerve is seen to loop under the submandibular duct
• B. Damage to the lingual nerve will cause loss of sensation to the posterior third of the tongue
• C. The submandibular gland is seen to warp around the posterior border of mylohyoid
• D. The facial artery and vein are divided as they course through the deep part of the gland