The correct answer is letter C.
Explanation: Israel is a republican parliamentary democracy based on universal suffrage and proportional representation. Israel's system of government is based on several basic laws enacted by its parliament, the Knesset.
The president (head of state) is elected by the Knesset for a seven-year term. Since July 2014, this post is occupied by Reuven Rivlin. The prime minister (head of government) exercises executive power and is chosen by the president as the leader of the political party that is most able to form a government, usually coalition with others.