This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: Tanzania: Dar es Salaam was the torch's only stop in Africa, on April 13. The relay began at the grand terminal of the TAZARA Railway, which was China's largest foreign aid project of the 1970s, and continued for 5 km through the old city to the Benjamin Mkapa National Stadium in Temeke, which was built with Chinese aid in 2005. The torch was lit by Vice-President Ali Mohamed Shein. About a thousand people followed the relay, waving the Olympic flag. The only noted instance of protest was Nobel Peace Prize laureate Wangari Maathai's withdrawal from the list of torchbearers, in protest against human rights abuses in Tibet. Question: What country paid for the stadium through aid money?
China