Paul Decided He Did Not Want the New Jeans He

Paul decided he did not want the new jeans he had purchased from a large discount department store.He had worn them three times and decided he just did not like them.The jeans fit him fine and there is nothing wrong with them.He takes the jeans back to the store and,as is its policy,the store gave him a full refund of his money.Which statement is correct?

A) Paul's conduct was not unethical since the store's policy of giving full cash funds applied.
B) Paul's conduct was unethical.
C) Paul's conduct was unethical, even though the store had a legal obligation to return his money.
D) Paul's conduct was ethical since the store has a legal duty to return his money when he returned the jeans.