Answer:C. office in which power is conditional, depending on whether the political support that gives force to presidential leadership exists or can be developed.
Explanation:
Presidency refers to the office of the president of a state where he sits with all the members in the government such as the chief of staff and advisers because eventhough the president tittle is held by one person but they can not lead the whole state alone and the political elected member who work with them makes up the whole presidency.
Presidency can also refer to national unions or world unions like the presidency of the African Union or European Union
