The Panchsheel, or Five Principles of Peaceful Coexistence, played a significant role in shaping Sino-Indian relations.  Among the following statements regarding Panchsheel, which are CORRECT?

(a)  The principles were first articulated during negotiations to resolve the border dispute between India and China's Tibet region.
(b)  The Panchsheel aimed to promote a non-interventionist approach to international relations, particularly among newly independent states.
(c)  The principles were strictly adhered to by both India and China throughout their entire relationship.
(d)  The concept of Panchsheel originated entirely from Chinese foreign policy ideology.