(A) 1964
(B) 1966
(C) 1971
(D) 1977
🧠 Explanation:
- Regional Cooperation for Development (RCD) was founded by Pakistan, Iran, and Turkey.
- The organization was established on July 21, 1964.
- Its main objective was to promote socio-economic development and regional cooperation.
- RCD was later replaced by the Economic Cooperation Organization (ECO) in 1985.
Correct Answer: (A) 1964