In which of the following countries the president is very powerful, both in theory and practice and is the Head of the state as well as head of government?

A) Portugal
B) United Kingdom
C) United States
D) Brazil
E) Most nations in Latin America

Choose the correct answer from the given options:

C, D and E

The correct answer is Option 4- C, D and E

A) Portugal
B) United Kingdom
C) United States
D) Brazil
E) Most nations in Latin America

In a presidential system, the president is the Head of state as well as the head of government. In this system, the office of president is very powerful, both in theory and practice. Countries with such a system include the United States, Brazil and most nations in Latin America.

In a parliamentary system, the prime minister is the head of government. Most parliamentary systems have a president or a monarch who is the nominal Head of state. In such a system, the role of president or monarch is primarily ceremonial and prime minister along with the cabinet wields effective power. Countries with such system include Germany, Italy, Japan, United Kingdom as well as Portugal.