Answer : 4. "US, Japan and South Korea"
Explanation :

India, US, South Korea, Japan and the European Union have formed the Biopharmaceuticals Alliance. Its first meeting was held during the Bio International Convention 2024 in San Diego. Biopharmaceuticals derived from living organisms are set to account for 50% of future medical drugs. The alliance aims to prevent drug shortages like those experienced during the COVID-19 pandemic by diversifying and mapping the drug supply chain, ensuring a resilient and sustainable system.