Read the following context and choose the best option to answer the question.
Context: Kyoko has devoted her life to Shotaro . When Shotaro came to Tokyo to debut as a singer , she followed him and worked to provide for him . But one day , Kyoko overhears Shota telling his manager that Kyoko means nothing to him .
Question: What is Kyoko 's relationship to Shotaro
Options: 
A. His sister
B. His lover
C. His mother
D. None of the above choices .


B