Answer:
Option A, initiative
Step-by-step explanation:
Initiation is an art of performing an act or task by self motivation rather on command or instruction from anyone.
Insubordination is incorrect as here there is no mentioning of disobeying seniors or authority
Also, courage and power means having strength to perform any task. Here action is performed without any instruction and it in no sense signifies a brave deed.
Hence, option A is correct