Which among the following hosted 'Global Vaccine Summit' on 4th June, 2020?

1. A

   United Kingdom

   (a) United Kingdom. The Global Vaccine Summit on 4 June 2020 was hosted by the United Kingdom (Gavi replenishment, virtual). That host is the official key.

2. B

   United States of America

   (b) United States of America. Washington was a pledging partner, not the host of that 4 June summit.

3. C

   India

   (c) India. India pledged and spoke as a Gavi partner; it did not host the 4 June 2020 summit.

4. D

   China

   (d) China. China was not the host of the Global Vaccine Summit of 4 June 2020.

Summary. Official key is (a). The Global Vaccine Summit of 4 June 2020 was hosted by the United Kingdom in support of Gavi. The United States, India and China were not the hosts.