目时间在九月15号到九月21号，故选B项。

　　Desiree was only four when she lost her Dad. Instead of gradually adjusting to his death, Desiree refused to accept it and even wanted to die so as to be with her father. Concerned about her daughter, Rhonda turned to her mother, Trish Moore, for help.

　　November 8 of 1993 would have been Ken's 29th birthday. So Trish advised Desiree to send her father a card. Desiree's eyes lit up as she dictated a letter, "Happy birthday, Daddy. I love you and miss you. I hope you get this and can write to me on my birthday." Trish wrote the message and their address on a small piece of paper and tied it to the end of the string on a balloon with a drawing of the Little Mermaid (美人鱼). Finally, Desiree released the balloon.

　　On November 12 in eastern Canada, Wade MacKinnon was duck-hunting. Suddenly something in the bushes caught his eye. Curious, he approached to find a silver balloon. The letter finished with a mailing address in Live Oak, California. The balloon traveled 3,000 miles. What a coincidence! A Little Mermaid balloon landed at Mermaid Lake. To help Desiree, the MacKinnons wrote her a letter with a birthday card and an adaptation of The Little mermaid.

　　The MacKinnons' package arrived later on Desiree's birthday. The letter read, "Happy birthday from your daddy. You must be wondering who we are. Well, it all started... There are no stores in heaven, so your daddy picked us to do the shopping. We know your daddy loves you very much and wants you to be happy and not sad. Lots of love, the MacKinnons."

　　Tears in eyes, Desiree said, "I knew Daddy would find a way not to forget me." Next, Trish began to read the Little Mermaid to her, in which the mermaid was finally carried away by angels. "The mermaid goes to heaven just like Daddy!" Desiree said with delight. She understood then her father was with her always.

4. Why did Rhonda ask her mother for help?

A. Her husband passed away too young.

B. She wanted to free Desiree from sorrow.

C. Desiree kept her distance from her father.

D. She had no time to read books to Desiree.

5. What do we know about the balloon?