Hi,
I was deciding between B and C but I ended up pick C. It seems like B does strengthen the argument because the core argument here is that climbers should forfeit a sum of money to the government in case of calamity to reimburse the cost of rescuing them. Nonetheless, a criticism to the argument can be to the effect that climbers can take care of themselves without the government's involvement. Thus, answer B seem to defend the argument from this criticism by saying that the government has obligation to protect people from danger.
Is this a correct reasoning? Thanks