Question: What summit was to be attended by the representatives of 3% of the world's area, 21% of the world's population and 3.8% of the global economy, as of 2015?
Sentence (from "South Asian Association for Regional Cooperation"): The South Asian Association for Regional Cooperation (SAARC) is the regional intergovernmental organization and geopolitical union of nations in South Asia.
Relevant evidence: No