A. Price Supports, they support a price by preventing it from falling below a certain level.
Answer:
I think that the conclusion that I can draw in regards to him helping Hilary is that he endorsed her. The words of a former US President would likely make Hilary look really good in the limelight. Which is what happened. Since Obama was fond of her and publicly endorsed her, people thought she'd be a good choice in terms of Obama's judgement.
The correct answer should be something like equality, or equity, but mostly it is the right of the people to choose their own representatives. In authoritarian states the rulers are usually not chosen by the people and impose their will without the opinion of the people.