Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: A new biography of Michelle Obama has revealed that her mother was initially suspicious of her future son-in-law because he was of mixed race. Barack Obama's father was from Kenya and his mother was a white woman. His parents met in Hawaii although his father abandoned his family when the future president was aged just two. The claim is contained in a new biography of the First Lady written by Washington Post correspondent Peter Slevin. Scroll down for video Marian Robinson, far right, went on a visit to China in March last year, accompanying the First Lady, center, and her grandchildren Sasha, far left, and MaliaMarian Robinson said she had reservations about her future son-in-lawThe statement forms part of a new biography of Michelle ObamaThe book, which is due out next month, uncovered an old TV interviewDuring the interview, Mrs Robinson explained her fears concerning raceShe said she would have been worried had Mr Obama been entirely white 
 Question:However, despite her initial reservations, _, 77, was soon won over by the high-flying lawyer who had serious political ambitions.

Marian Robinson