Explanation:

- Option 1: Brazil

- Brazil is not a permanent member of the United Nations Security Council.

- It is an active participant but holds a non-permanent seat periodically.

- Option 2: Japan

- Japan is also not a permanent member.

- Like Brazil, Japan contributes through non-permanent roles.

- Option 3: Germany

- Germany is not a permanent member.

- It has served as a non-permanent member several times.

- Option 4: China

- China is a permanent member of the United Nations Security Council.

- It has held this position since the UN's founding in 1945.

The correct answer is Option 4, China, highlighted with a green tick for clarity. The other countries are influential globally but remain non-permanent members.