Explanation:
The plot line is about a couple. On the eve of Christmas, the wife discovers she had little money to get her husband a gift. She visited a hair dressers shop where she sold her long hair for 20 dollars. With this money, she gets her husband a watch chain. Later in the evening she tells her husband she sold her hair to afford the chain. Her gift from her husband is a set of ornamental comb. He sold the watch to get her the comb. Bother their actions showed how much they loved each other.
So, it's interesting for the readers and it can cause the main conflict in the story. Good luck
Answer:
there is no option but idiom is an expression or phrases whose meaning doesn't relate to literal meaning of it words