Correct Answer: (b) China
Note: India and China signed the Panchsheel Agreement, also known as the Five Principles of Peaceful Coexistence. The Five Principles of Peaceful Coexistence or The Panchsheel are as follows -
1- Peaceful co-existence.
2- Mutual respect for each other's territorial integrity and sovereignty.
3- Mutual non-interference.
4- Mutual non-aggression.
5- Equality and mutual benefit.