Under which of the following scenarios would it be appropriate for the vice president to assume the office of the president?
a.
president obama travels to nova scotia to vacation with his family.
b.
president obama must resign amid charges of fraud and tax evasion.
c.
president obama falls ill to chronic pneumonia and must cancel his diplomatic trip to turkey, sending vice president biden instead.
d.
president obama must attend to his reelection campaign trail, requiring him to give speeches across the country, leaving vice president biden to attend to the president’s duties.