Context: The wide sleeves of the black shihakushou gently fluttered in the air as the long arms swung back and front , the large hands still coarsely callused as ever . The footsteps were as always firm and steady , contrast to the almost hesitant - looking pace he walked up the stairs at . Nothing had changed yet at the same time , everything had changed .

Question: What may be the reason their hands were callused ?
Options:
0. The work they were doing was easy going on the hands .
1. The work they did required that their hands be very callous .
2. The work involved washing their hands with soap and water .
3. None of the above choices .
Answer: 3