Context: There are secret gangs of young people skilled in martial arts , who patrol the streets at night . They used to use their powers for good by , like , fighing crime or something , but now all the gangs are little more than criminals themselves . Except for one : the Purifiers .

Question: Why are the young people skilled in martial arts ?
Options:
0. Because they patrol the streets at night .
1. None of the above choices .
2. Because they used their powers for good .
3. Because they are in secret gangs .
Answer: 1