Answer: The introduction, the body and the conclusion are the 3 main parts of an argumentative essay because they highlight and include all the important parts needed in them. Stay safe!
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.
Answer:
C. On the way to the city of Riga
