This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Laryngeal Paralysis, Subject name: ENT
[{'content': 'Which one of the following lesions of vocal cord is dangerous to life: \nSelect and explain. \nA. Bilateral adductor paralysis, B. Bilateral abductor paralysis, C. Combined paralysis of left side superior and recurrent laryngeal nerve, D. Superior laryngeal nerve paralysis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (b) Bilateral abductor paralysis(Ref. Current Diagnosis & Treatment Otolaryngology, Lalwani, 3rd ed., 478; Scott Brown, 8th ed., Vol 2; 336)In bilateral abductor paralysis or B/L RLN palsy presentation is stridor because of which it is also known as life threatening palsy.In bilateral adductor paralysis, i.e. B/L complete paralysis, there will be aspiration bronchopneumonias but the presentation will not be acute life threatening in comparison to stridor in B/L RLN palsy.The remaining two options are not life threatening', 'role': 'assistant'}]