Confrontation always advances the plot, because it causes a lose-lose solution, meaning no one is happy, so there was no solution and confrontation could've made it worse.
Explanation:
I think the question is wrong. Sorry if I am wrong!
But It should have been "You cannot get a refund ________ sale goods."
In this case the answer should have been ON.
Anyway the answer is ON.
B is your answer, I believe

The Correct choice will be : 3. " refuge "
" During the tsunami, my family took <u>refuge</u> in a guest house on the hill. "
[ The other words are not suitable for the situation expressed by the sentence ]