The correct option is A China
The People's Republic of China is governed by the Communist Party since 1949 when it overthrown Nationalist government in a civil war. The communist party governs according to democratic centralism with complete political authority. Members of government are required to uphold collective decisions once a vote is made. Power is concentrated in the hands of one position, the paramount leader also known as President. Whereas, India, USA and UK are democratic countries with different political parties. Hence, option C is the correct answer.