This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ca Larynx, Subject name: ENT
A patient with ____________ is a candidate for a supraglottic paial laryngectomy. 
Select and explain. 
A. A T2 lesion of the right aryepiglottic fold, a right false vocal cord, and impaired mobility of the true vocal cord, B. A lesion of the laryngeal surface of the epiglottis below the hyoid bone with evidence of preepiglottic space invasion on computed tomography, C. A lesion of the epiglottis, vallecula, and 1-cm, unilateral extension to the tongue base, D. An invasive lesion of the false vocal cord that is found to extend significantly into the ventricle at the time of surgical endoscopy
B: A lesion of the laryngeal surface of the epiglottis below the hyoid bone with evidence of preepiglottic space invasion on computed tomography
Answer: B: A lesion of the laryngeal surface of the epiglottis below the hyoid bone with evidence of preepiglottic space invasion on computed tomography 
Explanation: Paial laryngectomy also known as Conservative laryngectomy - done to preserve the voice 1. Supraglottic Laryngectomy - removing half of the thyroid cailage Supraglottic Laryngectomy T1, 2, or 3 if only by preepiglottic space invasion Mobile cords No anterior commisure involvement FEV1>50% No tongue base disease past circumvallate papillae Apex of pyriform sinus not involved Supracricoid Laryngectomy - Thyroid cailage is completely removed - Crico-hyoid epiglottopexy