While on Vacation in Berserk You and Another Traveller Are

While on vacation in Berserk you and another traveller are arrested and accused of spying for Canada.You are,of course,both innocent.Your captors inform you that if you confess,you will receive a sentence of two years while the other traveller will receive a sentence of 20 years.If you both confess you will each receive a sentence of three years.You are also told that the other traveller is being offered the same option.You suspect that there is not enough evidence to convict you unless the other traveller confesses.If you are risk averse,what should you choose to do

A) Not confess, because you are innocent even though you may spend 20 years in a Berserk prison.
B) Not confess, in hopes that your alleged co-conspirator also remains silent.
C) Confess, because it is always the best solution to this type of game.
D) Confess, even though you are innocent, to avoid a 20-year sentence.