You and your friend are caught by the police for a crime, and you are both placed in separate cells. The prosecutor makes the following offer to each of you:

If you both remain silent, you will each get 1 year in prison.

If you betray your friend and they remain silent, you will go free and your friend will get 3 years in prison.

If you both betray each other, you will both get 2 years in prison.

What do you choose?