Answer:
The correct answer is B. Hillary Clinton appointment as secretary of state most clearly demonstrated that President Obama.
Step-by-step explanation:
Hillary Clinton's appointment as Secretary of State was a clear demonstration that Obama wanted to include as many political visions as possible within the Democratic space within his government.
In this sense, during the 2008 Democratic primaries, Obama proved to be a more liberal and progressive candidate than Clinton, who responded to the democratic establishment and to a more moderate vision of social issues than Obama had. But, in turn, this situation was reversed in economic matters, being Clinton the one who defended more leftist ideas than those defended by Obama.
Thus, by designating Clinton as a member of her cabinet, Obama granted political recognition to her adversary, while also including within her government sectors of the Democratic Party that were not so closely aligned with his policies.