Explanation:

The government has appointed Union Minister for Commerce & Industry Piyush Goyal as Sherpa for the G20 meet, replacing former Union Minister Suresh Prabhu. The development comes a little over a month before the next summit scheduled at the end of October in Rome.

• A Sherpa is a personal representative of the leader of a member country at an international Summit meeting such as the G8, G20, the Nuclear Security Summit etc.
• The Sherpa engages in planning, negotiation and implementation tasks through the Summit. They coordinate the agenda, seek consensus at the highest political levels, and participate in a series of pre-Summit consultations to help negotiate their leaders’ positions.
• Sherpas are career diplomats or senior government officials appointed by the leaders of their countries.
• The term is derived from the Nepalese Sherpa people, who serve as guides for mountaineers in the Himalayas.
• There is only one Sherpa per Summit for each member country; he/she is assisted by several sous Sherpas.

Hence only statement 1st is correct.