You will be given a definition of a task first, then some input of the task.
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.

He has also played for the Kansas City Chiefs. Jackson was signed as an undrafted free agent by the Atlanta Falcons in 2006. In week 7 of his rookie season, Jackson was activated as starting nose guard to replace veteran Pro Bowler Rod Coleman, who is out with a toe injury. In only _his_ second start, Jackson got his first sack in the NFL against the Cleveland Browns. <sep>, Pronoun: his <sep>, A: Rod Coleman <sep>, B: Jackson
Output:
B