A、The police. B、The taxi driver. C、A coffeehouse owner. D、A person unknown. C文章的最后提到Laurence Lennon为了表示感谢，拿出＄10，000作为报酬送给咖啡馆的主人，

A classical guitarist was thrilled to hear from New York City police that his valuable guitar had been found. (32) It disappeared almost a year ago when he got out of a taxicab and forgot to take the guitar with him.
     Laurence Lennon, 44, said he was running late that day. He was talking to his manager on his cell phone when he dashed out of the cab. He said that he gave the driver ＄60 and told him to keep the change. He walked through the front doors of the concert hall still talking on the phone to his manager.
    Upon discovering his loss, Lennon used his cell phone to call the police. (33) The policewoman asked him for the name of the cab company, the number of the cab, and the name of the driver. He said that she had to be kidding.
    She told Lennon that he could file a missing items report at the police station or online. (34) She told him that finding the guitar might take a couple of years, as finding guitars was not as important as finding murderers and drug-takers.
    Lennon considered that year depressing, as he had to postpone the recording of two new CDs. He has been using borrowed guitars, and he was losing hope of ever recovering his guitar.
    Lennon was reunited with his ＄100,000 guitar yesterday. The case and the guitar had been discovered in the comer of a coffeehouse only two blocks from where Lennon had lost it in the first place. Lennon had offered a＄ 10,000 reward for its return. (35)He said he would give the reward to the coffeehouse owner, who had found the guitar and notified the police. The police department prepared a news release about its success in tracking down the guitar.