Answer:
A. succession
Explanation:
The Twenty-Fifth Amendment to the Constitution of the United States (Amendment XXV) deals with the succession of the president of the United States, and establishes the procedures to be followed to fill the position of vice president in case of finding this vacancy, in addition to what the disabled president must be found to continue in his position. It replaces the ambiguous text of Article II, Section 1, Clause 6 of the Constitution, which does not expressly state whether the vice president becomes the president, or if he acts as acting president (provisional) if the president dies, resigns, is dismissed from his position, or is unable for any reason to comply with the duties of the office, Amendment XXV was ratified in 1967.
