Which of the Following Statements About Parliamentary Systems Is Accurate

Which of the following statements about parliamentary systems is accurate?

A) It is more difficult to remove a head of state from power in a parliamentary system than in a presidential system.
B) Heads of state are usually directly elected by the people.
C) Political deadlocks are often overcome through new elections or the election of a new prime minister.
D) They combine the roles of head of state and head of government into a single figure.
E) They are typically more stable than presidential systems.