Instructions: In this task, you will be presented with a text, a pronoun from the text, and two candidate names. You should determine what the pronoun refers to and classify the answers into A, B, or Neither. A and B here are referring to option A and option B. Position of the pronoun in the text is showed within two "_"s.
Input: Sima Shi, however, had a serious eye illness that was aggravated by the campaign, and he died less than a month later. At that time, Sima Zhao was with his brother at Xuchang (in modern Xuchang, Henan). The 14-year-old emperor Cao Mao made an effort to regain imperial power. _He_issued an edict which, under the rationale that Sima Shi had just defeated Guanqiu Jian and Wen Qin's rebellion and that the southeastern empire was still not complete pacified, ordered Sima Zhao to remain at Xuchang and that Sima Shi's assistant Fu Jia return to Luoyang with the main troops. <sep>, Pronoun: He <sep>, A: Cao Mao <sep>, B: Wen Qin
Output:
A