. In the WHO ended its Global health emergency regarding covid.  

The correct answer is (B) 2023. The World Health Organization (WHO) officially declared an end to the "Public Health Emergency of International Concern" (PHEIC) for COVID-19 on May 5, 2023. This decision reflected a significant decline in COVID-19 deaths, hospitalizations, and intensive care admissions, coupled with high levels of population immunity globally. While the virus continues to circulate, the emergency phase was deemed over due to improved management capabilities, widespread vaccination, and reduced severity of the disease. Options (A) 2022 and (C) 2020 are incorrect; 2020 was when the emergency was declared, and 2022 was still a period of significant global concern, preceding the official end of the emergency status. This marked a crucial shift from an emergency response to long-term management of COVID-19.