Detailed 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.
Q: In 1889, Le Verrier was succeeded by Am*d*e Mouchez who set to work to bring astrophysics into the mainstream by hiring Deslandres. Deslandres developed the spectroheliograph simultaneously with George Hale. In 1898, he joined Janssen at Meudon, increasing the scientific staff by 100%. On Janssen's death in 1907, Deslandres became director and embarked on a programme of expansion. At the outbreak of World War I in 1914, though already in _his_ 60s, he returned to active service in the engineers as a major and later lieutenant colonel. <sep>, Pronoun: his <sep>, A: Janssen <sep>, B: Deslandres
A:
B