Detailed Instructions: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.
Problem:Question: How old was Mao Zedong when the Nationalist troops conveyed the relics to Yan'an? Passage:Once in Chinese hands, the relics did not go to Qinghai as planned. On 17 May 1939, 200 specially-selected Nationalist troops conveyed the relics to Yan'an, then the principal base of the Chinese Communists. Upon their arrival on 21 June 1939, the Communists held a large public sacrifice to Genghis Khan with a crowd of about ten thousand spectators; the Central Committee presented memorial wreathes; and Mao Zedong produced a new sign for it in his calligraphy, reading "Genghis Khan Memorial Hall" ( Chengjisi Han Jiniantang). As part of the Second United Front, it was allowed to pass out of the Communist controlled area to Xi'an, where Shaanxi governor Jiang Dingwen officiated another religious ritual before a crowd of tens of thousands on 25 June. (Accounts vary from thirty to 200,000.) Li Yiyan, a member of the Nationalists' provincial committee, wrote the booklet China's National Hero Genghis Khan ( Zhonghua Minzu Yingxiong Chengjisi Han) to commemorate the event, listing the khan as a great Chinese leader in the mold of the First Emperor, Emperor Wu, and Emperor Taizong. A few days later, the Gansu governor Zhu Shaoliang held a similar ritual before enshrining the khan's relics at the Dongshan Dafo Dian on Xinglong Mountain in Yuzhong County. The Gansu government sent soldiers and a chief official for the shrine and brought the remaining Darkhad onto the provincial government's payroll; the original 500 Darkhad were reduced to a mere seven or eight. Following this journey, the shrine remained there for ten years.

Solution:
b