Explanation
- A
Brazil
(a) Brazil. Brazil hosted BRICS in 2014 (Fortaleza) and later years, not the 10th summit of 2018. It is not the key.
- B
South Africa
(b) South Africa. The 10th BRICS Summit met in Johannesburg, South Africa, on 25–27 July 2018, themed ‘BRICS in Africa’. That stored host is the official key. India was represented by Prime Minister Modi.
- C
Russia
(c) Russia. Russia hosted Ufa 2015, not the tenth summit. It is not the key.
- D
China
(d) China. China hosted Xiamen 2017, the ninth summit, immediately before South Africa’s tenth.
Summary. Official key is (b) South Africa. Johannesburg hosted the 10th BRICS Summit in July 2018. Brazil, Russia and China hosted other numbered summits, not this tenth. Neighbouring facts are the Africa outreach and the New Development Bank. Honour Johannesburg for 2018.