Concept:In a presidential system, constitutional removal of the president is done through a formal legal process.
Explanation:The president cannot be removed by a simple vote of no-confidence, because the executive is not responsible to the legislature in a presidential system.
A coup d' etat is an illegal and unconstitutional method of removal.
Persuasion is not a constitutional procedure.
Impeachment is the constitutional process by which the legislature formally charges the president with serious misconduct.
After such charges are brought, the president may be removed if found guilty by the required majority.
Therefore, impeachment is the correct constitutional method.
Answer:B. impeachment