Final answer:
Justice Elena Kagan took her seat on the Supreme Court in 2010. hence the correct option is B.
Step-by-step explanation:
Justice Elena Kagan took her seat on the Supreme Court in 2010. She was nominated by President Barack Obama to fill the vacancy created by the retirement of Justice John Paul Stevens. Kagan's nomination was confirmed by the Senate, and she was sworn in as the 112th justice and the fourth woman to ever serve on the Supreme Court.
Elena Kagan's legal career and qualifications played a significant role in her nomination. Prior to joining the Supreme Court, she had served as the Solicitor General of the United States, where she represented the federal government before the Supreme Court. Kagan's academic background, which included teaching at Harvard Law School, and her experience in various legal roles contributed to her suitability for a seat on the nation's highest court.
Since taking her seat on the Supreme Court, Justice Kagan has been known for her thoughtful and pragmatic approach to legal issues. Her tenure has included participation in important cases covering a range of constitutional and statutory matters, and she has been an influential voice on the Court.
Therefore, the correct answer is (b) 2010.