Regarding the larynx

• A. The external laryngeal nerve supplies the posterior cricoarytenoid muscle
• B. The internal laryngeal nerve supplies cricothyroid
• C. The blood supply above the vocal cords is by a branch of the internal carotid
• D. Normal vocal cords are always covered by stratified squamous epithelium
• E. The recurrent laryngeal nerve lies immediately behind the cricoarytenoid joint