Nhận biết (M1)

President Richard Nixon is most famous for his participation in the 1970s Watergate political scandal, a convoluted tale of criminality and eroded ethics involving a constellation of associates such as security operative Jack Caulfield and Secretary of State Henry Kissinger. But Nixon's legacy is complex: he has been praised for his role in enacting the Clean Air Act into law, and he once made an attempt at reforming United States health care policy that is arguably a precursor to the Affordable Care Act, which became law during the Barack Obama administration.

Which choice best describes the function of the underlined sentence?

• A.

  It compares the achievements of three historical figures.

• B.

  It presents information about a historical figure that helps explain that figure's significance.

• C.

  It explains why a historical figure's accomplishments are often disregarded by historians.

• D.

  It offers information implying that a commonly held perception of a historical figure is imprecise.