Q: 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.
Castillo made numerous recordings with some of the leading folklorists of the New Chilean Song movement which included some of the most influential musicians in Latin America, including V*ctor Jara, Los Parras and Los Jaivas. Early on in _his_ career Castillo began to collaborate musically with Victor Jara on many of his albums and they jointly composed a song that would go on to become one of Victor Jara's most famous songs Plegaria a un Labrador (Prayer to a labourer). <sep>, Pronoun: his <sep>, A: Castillo <sep>, B: Victor Jara
A:
A