This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Which of the following are true -a) Tracheo-bronchial cartilage is fibrousb) Thyroid cartilage is hyalinec) Cricoid cartilage is hyalined) Corniculate cartilage is elastice) Epiglottis cartilage is elastic 
Select and explain. 
A. bce, B. abd, C. bcde, D. acde
C: bcde
Answer: C: bcde 
Explanation: Tracheobronchial cartilage is hyaline cartilage.