Detailed Solution:
The correct answer is “1 and 3”.
1) China is the world's largest producer of tobacco.
2) The United States is the largest producer of sorghum, also known as jowar in India, in the world.
3) Brazil is the world's largest producer of soybeans, accounting for 35% of global production in 2022.
4) China's silk production accounts for 75% of global raw silk production and 90% of the world export market.