Question: To remove blood stains from fabric.
Option 0: Moisten the spot. Let sit. Dab with hydrogen peroxide. Moisten the pot. Let sit. Dab with nitrogen peroxide. Wipe  away the pot and repeat the till the stain is completely removed.
Option 1: Moisten the spot. Let sit. Dab with hydrogen peroxide. Wipe  away the spot and repeat the till the stain is completely removed.
Answer: 1