One morning a young woman, who has recently lost her first post, was examining the advertisements in the paper in search of other work. Suddenly she called out to her mother, who was in the kitchen.
"Listen to this, Mother!" she cried. "I"ve found an easy way of making money."
"What is it" her mother asked, coming into the room.
"Listen," said the girl, and read the advertisement aloud: "Do you want to make money Send me a postal order for five pence, together with a stamped, addressed envelope. You will receive a reply showing you how to make hundreds of pounds without leaving your house." Then there"s a name and address."
"Nonsense!" said her mother. "You"ll only lose five pence and the cost of a postal order and two stamps. If he knows how to do that, why doesn"t he do it himself You won"t get an answer."
"Well, five pence isn"t much," she said. "I can try." She went to the post-office, bought a postal order, and sent it off.
Two or three days. later she received an envelope with a small piece of paper in it. On the paper were four words: "Do as I do."

Why did the daughter send off the postal order

A．Because she wanted to try her luck.
B．Because she believed in the advertisement.
C．Because she just have a little money.