Given the task definition and input, reply with output. 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.

At the same time, the ideas of the Reformation were recognised along with the establoshment of a national church in Sweden during the Uppsala Synod in 1593. At this point, the breach with the papacy was finally ratified. At this time in Sweden, politics was religion, and religion was politics, why the decision could be perceived as a provocative stance by the throne pretendent Duke against future King Sigismund and _his_ supporters, which would eventually result in the War against Sigismund. <sep>, Pronoun: his <sep>, A: Duke <sep>, B: King Sigismund
B