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: ENT
Type 1 thyroplasty is true 
Select and explain. 
A. Lateralisation of vocal cord, B. Medialisation of vocal cord, C. Vocal cord shortening, D. Vocal cord Lenhtheninh.
B: Medialisation of vocal cord
Answer: B: Medialisation of vocal cord 
Explanation: Medialisation of vocal cord, used in unilateral complete vocal palsy.
4 types of Thyroplaty.

p - Type 1 - Proximalisation / medialise of VC in u/c complete palsy.
La - Type 2 - Lateralisation of VC.
S - type 3 - shortening of UC / relaxing of UC, used in puberophonia .
Ty - type 4 - Tightening of VC used in androphonia[Female with low pitch voice.