U/L vocal cord palsy treatment includes -a) Isshiki type I thyroplastyb) Isshiki type II thyroplastyc) Woodmann operationd) Laser arytenoidectomye) Teflon injection
Actually the answer of this question should be none as isolated unilateral vocal cord paralysis does not usually require any treatment.
However, if consider unilateral vocal cord paralysis as a part of combined unilateral palsy (combined RLN and SLN paralysis), then option 'a & e' are correct.

Treatment of unilateral combined (RLN & SLN) Paralysis 

Speech therapy
Medialization of cord : - This can be done by : -


Injection of teflon paste lateral to paralysed cord.
Thyroplasty type I
Muscle or cartilage implant
Arthrodesis of cricoarytenoid joint
ae
b
ab
ad