阅读下列短文. 从每题所给的 A、B、C 和 D 四个选项中. 选出最佳选项。Bill Sumiel was having a tough Friday. It was October 2020, and the 71-year-old, who was dealing with kidney(肾)failure and had been on dialysis( 透 析 )for a few years, found himself away from home.
He'd been diagnosed with diabetes(糖尿病) over 20 years before, which led to his kidney problems. He was on the transplant list, but no matches had yet appeared. So he continued with his treatments periodically. Without a ride lined up for Friday's do-over, Sumiel took Ubers to and from his appointment.
Timothy Letts, 31, was driving to visit a friend when his phone received the request for Sumiel's ride home. When Sumiel got into his car, Letts could see that the older man was unenergetic but in good spirits. And as they set out to Sumiel's home, the pair got to chatting. During conversation, Sumiel revealed that he was searching for a kidney donor. Letts joked that he'd be a good donor candidate, given that he didn't drink or smoke.
Sumiel agreed, though he didn't think much of it. Letts, however, couldn't stop thinking about it and it was always on his mind. So, Letts said:"I'd like to see if I could be a match to give you a kidney. "
"I was shocked, "Sumiel recalls. He was shaking so hard that he could barely write his name when they exchanged contact information. After the initial excitement, Sumiel started feeling less optimistic. He was touched by Letts's offer, but he wondered if it had just been an emotional moment. Would he hear from him? And what was the likelihood of a match?
But Letts was true to his word. He got in touch with Sumiel just a few hours later, and by the next week, Letts had contacted the kidney transplant program. After a series of testing, the results were in: Letts was an ideal donor, and he and Sumiel were a perfect match.
In December 2021, 14 months after their chance encounter, Sumiel and Letts had their surgeries. It was a success. Today they live respectively and healthily and anticipate the day they can reunite.